CN102594701A - Frequency spectrum reconstruction determination method and corresponding system - Google Patents
Frequency spectrum reconstruction determination method and corresponding system Download PDFInfo
- Publication number
- CN102594701A CN102594701A CN2012100671967A CN201210067196A CN102594701A CN 102594701 A CN102594701 A CN 102594701A CN 2012100671967 A CN2012100671967 A CN 2012100671967A CN 201210067196 A CN201210067196 A CN 201210067196A CN 102594701 A CN102594701 A CN 102594701A
- Authority
- CN
- China
- Prior art keywords
- frequency spectrum
- reconfiguration
- benefit
- network
- spectrum reconfiguration
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
Images
Abstract
The invention provides a frequency spectrum reconstruction determination method and a corresponding system. The method comprises the following steps: performing statistics on the use state of a current frequency spectrum in a network; respectively recording and updating both the use state of the frequency spectrum and related service information of the network with reconstructed frequency spectrum after the network is subjected to reconstruction utilizing various frequency spectrum reconstruction methods; obtaining respective frequency spectrum reconstruction benefit of the frequency spectrum reconstruction methods according to the frequency spectrum use state and the related service information; and assessing the various frequency spectrum reconstruction methods according to the frequency spectrum reconstruction benefits so as to determine the optimal frequency spectrum reconstruction method for the network. The invention provides the determination method based on the advantages and disadvantages of the different frequency spectrum reconstruction methods. According to the method, the frequency spectrum reconstruction benefit corresponding to each frequency spectrum reconstruction method is counted, based on which the frequency spectrum reconstruction method is assessed, so that the frequency spectrum reconstruction method best suitable for the network is selected, and the utilization ratio of the frequency spectrum resource is preferably improved.
Description
Technical field
The present invention relates to field of optical networks, relate in particular to a kind of definite method and system of frequency spectrum reconfiguration.
Background technology
Along with the develop rapidly of Modern Telecommunication, computer and technique of internet, data, voice, video etc. are professional to be transmitted all in continuous growth, and demonstrates convergence, is to satisfy the business demand that increases fast, requires to make full use of limited Internet resources.
Traditional wavelength division multiplexed network is employed in the fixing frequency of allocated size on each wavelength, promptly is that granularity is transmitted with the wavelength, is separated quality of signals when guaranteeing to receive between wavelength and the wavelength by the protection bandwidth.But because the Frequency Distribution of fixed size can produce the negative effect that granularity chap and flexibility reduce.When transmission demand during, still can satisfy this demand, thereby cause the waste of frequency spectrum resource through distributing whole wavelength less than the capacity of one section wavelength.Therefore, improve network resource utilization though traditional wavelength division multiplexed network adopts flow to dredge strategy, the degree that improves is limited.
And the flexible spectrum optical-fiber network adopts light positive to hand over frequency multiplexing technique, can improve network resource utilization well, and the flexible spectrum optical-fiber network is distributed to data on the plurality of sub carrier wave and transmits.The flexible spectrum optical-fiber network is given the continuous subcarrier of traffic assignments, and subcarrier is littler with respect to the wavelength granularity of traditional wavelength division multiplexed network here, can better matched size different service transmit, and improves the availability of frequency spectrum, reduces blocking rate.
During professional the arrival, we will distribute frequency spectrum for it; After the service ending, we will discharge its frequency spectrum resource that occupies.With the Wavelength Assignment process of wavelength division multiplexed network only need satisfy the constraint of consistent wavelength property different be that the spectrum allocation may process of flexible spectrum optical-fiber network must satisfy two constraints: the constraint of the constraint of consistent wavelength property, spectral continuity.
Because professional arrival has very big randomness with the professional duration, after a period of time, the frequency spectrum state of whole network will become disorderly and unsystematic, a lot of frequency spectrum fragments can occur.These frequency spectrum fragments can not be distributed to new business because it is discontinuous, in case quantity too much will cause very big frequency spectrum resource waste.When network traffic is bigger, can cause higher blocking rate.If we are integrated into continuous frequency spectrum through certain means with it, then can distribute to new business and use, thereby the utilance of raising frequency spectrum resource reduce business block rate.This integration process is defined as frequency spectrum reconfiguration.Existing frequency spectrum reconfiguration method mainly contains two kinds, and a kind of service transmission path for a change reaches the raising of the availability of frequency spectrum; It is another kind of for business is directly moved on original route.In a network model, introduce these two kinds of frequency spectrum reconfiguration methods below.
The network topology structure of above-mentioned network model is as shown in Figure 1; The spectrum distribution of bearer service is as shown in Figure 2 in the said network model; Fig. 3 carries out the professional spectrum distribution state that obtains behind the frequency spectrum reconfiguration for adopting above-mentioned first method; Comparison by Fig. 2 and Fig. 3 can get, and this frequency spectrum reconfiguration method becomes A-C-B with the path of professional F by A-B, professional F is transformed to the frequency spectrum lower transmit; Fig. 4 carries out the professional spectrum distribution state that obtains behind the frequency spectrum reconfiguration for adopting above-mentioned second method, and this method is directly moved the professional E of the professional F of professional D forward, has reached the purpose that improves the availability of frequency spectrum.
Hence one can see that, and the most basic target of frequency spectrum reconfiguration is exactly with the already used frequency spectrum resource centralization of business, with untapped frequency spectrum resource serialization, exactly some business on the light path carried out frequency spectrum in essence and heavily distribute.Because frequency spectrum reconfiguration is with the obvious advantage, in the current research, the scheme of a lot of frequency spectrum reconfigurations occurs.For a network, alternative frequency spectrum reconfiguration method has a lot.To same network, adopt different frequency spectrum reconfiguration methods, the effect that obtains is different.How filtering out the frequency spectrum reconfiguration method that is fit to this network is a current key issue that faces.
Summary of the invention
In view of this, main purpose of the present invention is to provide a kind of definite method and system of frequency spectrum reconfiguration, can filter out the optimum frequency spectrum reconfiguration method of network.
For achieving the above object, technical scheme of the present invention is achieved in that
A kind of definite method of frequency spectrum reconfiguration, said method comprises:
Statistics network current frequency spectrum user mode;
After utilizing multiple frequency spectrum reconfiguration method that said network is carried out frequency spectrum reconfiguration, write down and upgrade the frequency spectrum user mode and the service related information of the network behind the different spectral reconstructing method frequency spectrum reconfiguration respectively;
According to frequency spectrum user mode and service related information, obtain each self-corresponding frequency spectrum reconfiguration benefit of frequency spectrum reconfiguration method;
Through the frequency spectrum reconfiguration benefit multiple frequency spectrum reconfiguration method is assessed, confirmed the optimum frequency spectrum reconfiguration method of said network.
Wherein, said statistics network current frequency spectrum user mode is:
The maximum spectrum that statistics network is current.
Wherein, saidly write down respectively and upgrade and utilize the different spectral reconstructing method to carry out that the frequency spectrum user mode and the service related information of network is behind the frequency spectrum reconfiguration:
Write down respectively and upgrade and utilize the different spectral reconstructing method to carry out maximum spectrum and service disconnection number, the service delay of network behind the frequency spectrum reconfiguration.
Wherein, according to frequency spectrum user mode and service related information, obtain each self-corresponding frequency spectrum reconfiguration benefit of frequency spectrum reconfiguration method and be:
According to maximum spectrum and the service related information before and after the network reconfiguration, the benefit of service disconnection that benefit that the propagation delay time change produces behind the benefit that availability of frequency spectrum raising produces behind the calculating frequency spectrum reconfiguration, the frequency spectrum reconfiguration and frequency spectrum reconfiguration cause and/or time delay generation is lost;
After propagation delay time changes the benefit summation that produces behind the benefit that the availability of frequency spectrum behind the frequency spectrum reconfiguration improve is produced and the frequency spectrum reconfiguration, deduct the benefit loss that service disconnection that frequency spectrum reconfiguration causes and/or time delay produce and obtain the frequency spectrum reconfiguration benefit.
Wherein, saidly multiple frequency spectrum reconfiguration method is assessed, is confirmed that the optimum frequency spectrum reconfiguration method of said network is through the frequency spectrum reconfiguration benefit:
The frequency spectrum reconfiguration benefit that more a plurality of frequency spectrum reconfiguration methods are corresponding, the frequency spectrum reconfiguration method that maximum spectrum reconstruct benefit is corresponding is confirmed as the optimum frequency spectrum reconfiguration method of said network.
Wherein, said each the self-corresponding frequency spectrum reconfiguration benefit of frequency spectrum reconfiguration method that obtains is:
Utilize
Calculate each self-corresponding frequency spectrum reconfiguration benefit of frequency spectrum reconfiguration method;
Wherein, N representes link sum in the said network, Δ F
nRepresent before the frequency spectrum reconfiguration on the n bar link difference of maximum spectrum after the maximum spectrum and frequency spectrum reconfiguration, C
FThe cost of representation unit frequency spectrum; Δ E
nBe the difference of the frequency spectrum number that takies continuously before and after the n bar link frequency spectrum reconfiguration, C
ERepresent the cost of each continuous frequency spectrum; M represents the Network sum, and i representes i business, Δ D
iBe the difference of the original path of business with new dispense path jumping figure, C
DCost for each jumping; T
iThe time delay of representing professional i, C
rThe loss that the representation unit time delay is brought; P
iRepresent the priority of professional i, C
PRepresent service with different priority levels to interrupt the unit loss that brings.
A kind of frequency spectrum reconfiguration is fixed system really, and said system comprises: statistic unit and assessment unit; Wherein,
Said statistic unit; Be used for statistics network current frequency spectrum user mode; After utilizing multiple frequency spectrum reconfiguration method that said network is carried out frequency spectrum reconfiguration, write down respectively and upgrade and utilize the different spectral reconstructing method to carry out the frequency spectrum user mode and the service related information of network behind the frequency spectrum reconfiguration;
Said assessment unit is used for according to frequency spectrum user mode and service related information, obtains each self-corresponding frequency spectrum reconfiguration benefit of frequency spectrum reconfiguration method; Through the frequency spectrum reconfiguration benefit multiple frequency spectrum reconfiguration method is assessed, confirmed the optimum frequency spectrum reconfiguration method of said network.
Wherein, said statistic unit specifically is used for the current maximum spectrum of statistics network.
Wherein, said statistic unit specifically is used for writing down respectively and upgrades and utilize the different spectral reconstructing method to carry out maximum spectrum and service disconnection number, the service delay of network behind the frequency spectrum reconfiguration.
Wherein, Said assessment unit; Specifically be used for according to maximum spectrum and service related information before and after the network reconfiguration, the benefit of service disconnection that benefit that the propagation delay time change produces behind the benefit that availability of frequency spectrum raising produces behind the calculating frequency spectrum reconfiguration, the frequency spectrum reconfiguration and frequency spectrum reconfiguration cause and/or time delay generation is lost; After propagation delay time changes the benefit summation that produces behind the benefit that the availability of frequency spectrum behind the frequency spectrum reconfiguration improve is produced and the frequency spectrum reconfiguration, deduct the benefit loss that service disconnection that frequency spectrum reconfiguration causes and/or time delay produce and obtain the frequency spectrum reconfiguration benefit.
Wherein, said assessment unit specifically is used for the corresponding frequency spectrum reconfiguration benefit of more a plurality of frequency spectrum reconfiguration methods, and the frequency spectrum reconfiguration method that maximum spectrum reconstruct benefit is corresponding is confirmed as the optimum frequency spectrum reconfiguration method of said network.
Wherein, said assessment unit specifically is used for utilizing
Calculate the frequency spectrum reconfiguration benefit of the various correspondences of frequency spectrum reconfiguration method;
Wherein, N representes link sum in the said network, Δ F
nRepresent before the frequency spectrum reconfiguration on the n bar link difference of maximum spectrum after the maximum spectrum and frequency spectrum reconfiguration, C
FThe cost of representation unit frequency spectrum; Δ E
nBe the difference of the frequency spectrum number that takies continuously before and after the n bar link frequency spectrum reconfiguration, C
ERepresent the cost of each continuous frequency spectrum; M represents the Network sum, and i representes i business, Δ D
iBe the difference of the original path of business with new dispense path jumping figure, C
DCost for each jumping; T
iThe time delay of representing professional i, C
TThe loss that the representation unit time delay is brought; P
iRepresent the priority of professional i, C
PRepresent service with different priority levels to interrupt the unit loss that brings.
The pros and cons influence of the present invention through causing to the different spectral reconstructing method; A kind of definite method has been proposed; Obtain the corresponding frequency spectrum reconfiguration benefit of different spectral reconstructing method; According to this frequency spectrum reconfiguration benefit frequency spectrum reconfiguration method is assessed, can be filtered out the frequency spectrum reconfiguration method of suitable network, improve the utilance of frequency spectrum resource better.
Description of drawings
Fig. 1 is the topological structure of network model;
Fig. 2 is a professional spectrum distribution sketch map before the network model frequency spectrum reconfiguration shown in Figure 1;
Fig. 3 carries out professional spectrum distribution sketch map behind the frequency spectrum reconfiguration for network model shown in Figure 1 utilizes a kind of frequency spectrum reconfiguration method;
Fig. 4 carries out professional spectrum distribution sketch map behind the frequency spectrum reconfiguration for the another kind of frequency spectrum reconfiguration method of network model utilization shown in Figure 1;
Fig. 5 is the realization flow sketch map of definite method of frequency spectrum reconfiguration of the present invention;
Fig. 6 is the frequency spectrum reconfiguration of the present invention structural representation of fixed system really.
Embodiment
Definite method of frequency spectrum reconfiguration provided by the invention is to existing different frequency spectrum reconfiguration method, from the general character of reconstructing method, takes all factors into consideration the influencing factor of frequency spectrum reconfiguration, weighs that the pros and cons of various reconstructing methods obtain.Be specially, the pros and cons of bringing to network based on frequency spectrum reconfiguration are for various reconstructing methods provide a kind of definite method.Wherein, ' profit ' comprises the raising of the availability of frequency spectrum that frequency spectrum reconfiguration brings to network, i.e. network space centralization behind the frequency spectrum reconfiguration not only realizes energy-conservationly, also can be used to carry more business; ' fraud ' comprises the service disconnection that frequency spectrum reconfiguration causes, and wherein its loss of the interruption of different business also is different, and the service disconnection loss has multiple factor decision, comprises service priority, service delay etc.
Definite method of frequency spectrum reconfiguration method should comprise the various influencing factors that frequency spectrum reconfiguration brings network as far as possible all sidedly, comprehensively is an index with them, to qualitatively judge the Different Effects brought of different reconstructing methods to network.
Definite method that the present invention provides is to serve as to pass judgment on criterion with the benefit of obtaining, and the optimal spectrum reconstructing method of selecting must be to bring the maximum a kind of frequency spectrum reconfiguration method of benefit to operator.
Basic thought of the present invention is: statistics network current frequency spectrum user mode; After utilizing multiple frequency spectrum reconfiguration method that said network is carried out frequency spectrum reconfiguration, write down and upgrade the frequency spectrum user mode and the service related information of the network behind the different spectral reconstructing method frequency spectrum reconfiguration respectively; According to frequency spectrum user mode and service related information, obtain each self-corresponding frequency spectrum reconfiguration benefit of frequency spectrum reconfiguration method; Through the frequency spectrum reconfiguration benefit multiple frequency spectrum reconfiguration method is assessed, confirmed the optimum frequency spectrum reconfiguration method of said network.
For making the object of the invention, technical scheme and advantage clearer, below lift embodiment and, the present invention is further explained with reference to accompanying drawing.
Fig. 5 shows the realization flow signal of definite method of frequency spectrum reconfiguration of the present invention, and as shown in Figure 5, said method comprises the steps:
Particularly; The current maximum spectrum of statistics network in this step so that with frequency spectrum reconfiguration after each link of network maximum spectrum this can take situation and obtain through the statistics link, comprise 10 time slots such as a certain link; Business has taken 3,4,5 time slots, and at this moment maximum spectrum is 5.
Wherein, after utilizing a kind of frequency spectrum reconfiguration method that said network is carried out frequency spectrum reconfiguration, all to write down and upgrade the frequency spectrum user mode and the service related information of network at every turn; Here, said frequency spectrum user mode is the maximum spectrum of network, and service related information comprises information such as service disconnection number, service delay.
Particularly, in this step, all to calculate self corresponding frequency spectrum reconfiguration benefit to every kind of frequency spectrum reconfiguration method;
Here; Obtaining the frequency spectrum reconfiguration benefit is specially: maximum spectrum and service related information before and after the reconstruct Network Based, and the benefit of the service disconnection generation that benefit that the propagation delay time change produces behind the benefit that availability of frequency spectrum raising produces behind the calculating frequency spectrum reconfiguration, the frequency spectrum reconfiguration and frequency spectrum reconfiguration cause is lost; The benefit that the availability of frequency spectrum behind the frequency spectrum reconfiguration improve is produced with give birth to after propagation delay time changes the benefit summation that produces behind the frequency spectrum reconfiguration, deduct the benefit loss that service disconnection that frequency spectrum reconfiguration causes produces and obtain the frequency spectrum reconfiguration benefit.
Wherein, can utilize following formula to carry out the calculating of frequency spectrum reconfiguration benefit:
Above-mentioned formula can be divided into three parts, and the availability of frequency spectrum improves the benefit of bringing first represents frequency spectrum reconfiguration for
after; Propagation delay time changes the benefit change that brings second portion is represented frequency spectrum reconfiguration for
before and after; The benefit loss of third part is
expression frequency spectrum reconfiguration.So, the difference that to be exactly the frequency spectrum reconfiguration benefit lose with benefit of Q value representative, if the Q value greater than 0 then can increase benefit behind the frequency spectrum reconfiguration, Q has brought loss after less than 0 frequency spectrum reconfiguration.Three parts in the face of formula describe in detail down.
The availability of frequency spectrum improved the benefit of being brought after first
represented frequency spectrum reconfiguration, the value that promptly newly-increased bearer service is brought.Wherein N representes link sum in the network, Δ F
nRepresent before the frequency spectrum reconfiguration on the n bar link difference of maximum spectrum after the maximum spectrum and frequency spectrum reconfiguration, this difference can be used for new business transmission frequency spectra number after representing reconstruct; C
FThe cost of representation unit frequency spectrum, its reference value are the average of the economic benefit brought of network carrying new business.Δ E
nBe the difference of the frequency spectrum number that takies continuously before and after each link frequency spectrum reconfiguration, C
ERepresent the cost of each continuous frequency spectrum, its value reference transmitter port number and cost etc.
Second portion
is represented in the network of frequency spectrum reconfiguration front and back because service path changes the benefit change that brings; It is professional propagation delay time; This only just exists under the situation of frequency spectrum reconfiguration method change service path, otherwise this is 0.M represents the Network sum, and i representes wherein i business, Δ D
iBe the difference of the original path of business with new dispense path jumping figure, if be positive number, then the service path after the reconstruct is superior to original path; Required router and transmission equipment are few, are the benefit that frequency spectrum reconfiguration brings, if be negative; Then be that frequency spectrum reconfiguration has brought loss, C
DBe the cost of each jumping, its value is with reference to router and device port, cost etc.
Third part
is represented the service disconnection that frequency spectrum reconfiguration brings and/or the influence of time delay; Promptly, make the loss part client's of operator benefit lose because frequency spectrum reconfiguration causes some service disconnection of network.T
i* C
TBe the cost of service delay, should be appreciated that service delay does not comprise propagation delay time, P here
i* C
PBe that all different brackets are professional when impaired, the loss that operator receives; T wherein
iThe time delay of representing professional i, C
TThe loss that the representation unit service delay is brought; P
iRepresent service priority, C
PRepresent service with different priority levels to interrupt the unit loss that brings.
Wherein, above-mentioned Q value is relevant with network spectrum and Network, so various network Q value is different.In general, traffic matrix is little, the simple network of topology, and the Q value is less; Traffic matrix is big, the network that topology is complicated, and the Q value is bigger.To different reconstructing methods, wherein the value of each factor of influence of Q value is different, and the Q value size that obtains is also different.
Step 504 is assessed multiple frequency spectrum reconfiguration method through the frequency spectrum reconfiguration benefit, confirms the optimum frequency spectrum reconfiguration method of said network;
Particularly, through the corresponding frequency spectrum reconfiguration benefit of more a plurality of frequency spectrum reconfiguration methods, the frequency spectrum reconfiguration method that maximum spectrum reconstruct benefit is corresponding is confirmed as the optimum frequency spectrum reconfiguration method of said network.When follow-up said network needs frequency spectrum reconfiguration, adopt determined optimum frequency spectrum reconfiguration method to carry out frequency spectrum reconfiguration.
The economic benefit that on behalf of frequency spectrum reconfiguration, frequency spectrum reconfiguration benefit Q value bring to operator.Under certain network environment, adopt certain frequency spectrum reconfiguration method, if the Q value less than 0, then should not carried out frequency spectrum reconfiguration; If the Q value can with due regard to adopt this method to carry out frequency spectrum reconfiguration greater than 0.Various network, its network topology, traffic matrix has nothing in common with each other, and the optimal spectrum reconstructing method of being got also is not quite similar.Want concrete network concrete analysis for the selection of frequency spectrum reconfiguration method, actual conditions Network Based are selected optimal frequency spectrum reconfiguration method.
Fig. 6 shows the frequency spectrum reconfiguration of the present invention structural representation of fixed system really, and as shown in Figure 6, said system comprises: statistic unit 61 and assessment unit 62; Wherein,
Said statistic unit 61; Be used for statistics network current frequency spectrum user mode; After utilizing multiple frequency spectrum reconfiguration method that said network is carried out frequency spectrum reconfiguration, write down respectively and upgrade and utilize the different spectral reconstructing method to carry out the frequency spectrum user mode and the service related information of network behind the frequency spectrum reconfiguration;
Said assessment unit 62 is used for according to frequency spectrum user mode and service related information, obtains each self-corresponding frequency spectrum reconfiguration benefit of frequency spectrum reconfiguration method; Through the frequency spectrum reconfiguration benefit multiple frequency spectrum reconfiguration method is assessed, confirmed the optimum frequency spectrum reconfiguration method of said network.
Wherein, said statistic unit 61 specifically is used for the current maximum spectrum of statistics network.
Wherein, said statistic unit 61 specifically is used for writing down respectively and upgrades and utilize the different spectral reconstructing method to carry out maximum spectrum and service disconnection number, the service delay of network behind the frequency spectrum reconfiguration.
Wherein, Said assessment unit 62; Specifically be used for according to maximum spectrum and service related information before and after the network reconfiguration, the benefit of service disconnection that benefit that the propagation delay time change produces behind the benefit that availability of frequency spectrum raising produces behind the calculating frequency spectrum reconfiguration, the frequency spectrum reconfiguration and frequency spectrum reconfiguration cause and/or time delay generation is lost; After propagation delay time changes the benefit summation that produces behind the benefit that the availability of frequency spectrum behind the frequency spectrum reconfiguration improve is produced and the frequency spectrum reconfiguration, deduct the benefit loss that service disconnection that frequency spectrum reconfiguration causes and/or time delay produce and obtain the frequency spectrum reconfiguration benefit.
Wherein, said assessment unit 62 specifically is used for the corresponding frequency spectrum reconfiguration benefit of more a plurality of frequency spectrum reconfiguration methods, and the frequency spectrum reconfiguration method that maximum spectrum reconstruct benefit is corresponding is confirmed as the optimum frequency spectrum reconfiguration method of said network.
Further, said assessment unit 62 specifically is used for utilizing following formula
Calculate the frequency spectrum reconfiguration benefit of the various correspondences of frequency spectrum reconfiguration method;
Above-mentioned formula can be divided into three parts, and the availability of frequency spectrum improves the benefit of bringing first represents frequency spectrum reconfiguration for
after; Propagation delay time changes the benefit change that brings second portion is represented frequency spectrum reconfiguration for
before and after; The benefit loss of third part is
expression frequency spectrum reconfiguration.So, the difference that to be exactly the frequency spectrum reconfiguration benefit lose with benefit of Q value representative, if the Q value greater than 0 then can increase benefit behind the frequency spectrum reconfiguration, Q has brought loss after less than 0 frequency spectrum reconfiguration.Three parts in the face of formula describe in detail down.
The availability of frequency spectrum improved the benefit of being brought after first
represented frequency spectrum reconfiguration, the value that promptly newly-increased bearer service is brought.Wherein N representes link sum in the network, Δ F
nRepresent before the frequency spectrum reconfiguration on the n bar link difference of maximum spectrum after the maximum spectrum and frequency spectrum reconfiguration, this difference can be used for new business transmission frequency spectra number after representing reconstruct; C
FThe cost of representation unit frequency spectrum, its reference value are the average of the economic benefit brought of network carrying new business.Δ E
nBe the difference of the frequency spectrum number that takies continuously before and after each link frequency spectrum reconfiguration, C
ERepresent the cost of each continuous frequency spectrum, its value reference transmitter port number and cost etc.
Second portion
is represented in the network of frequency spectrum reconfiguration front and back because service path changes the benefit change that brings; It is professional propagation delay time; This only just exists under the situation of frequency spectrum reconfiguration method change service path, otherwise this is 0.M represents the Network sum, and i representes wherein i business, Δ D
iBe the difference of the original path of business with new dispense path jumping figure, if be positive number, then the service path after the reconstruct is superior to original path; Required router and transmission equipment are few, are the benefit that frequency spectrum reconfiguration brings, if be negative; Then be that frequency spectrum reconfiguration has brought loss, C
DBe the cost of each jumping, its value is with reference to router and device port, cost etc.
Third part
is represented the service disconnection that frequency spectrum reconfiguration brings and/or the influence of time delay; Promptly, make the loss part client's of operator benefit lose because frequency spectrum reconfiguration causes some service disconnection of network.T
i* C
TBe the cost of service delay, should be appreciated that service delay does not comprise propagation delay time, P here
i* C
PBe that all different brackets are professional when impaired, the loss that operator receives; T wherein
iThe time delay of representing professional i, C
TThe loss that the representation unit service delay is brought; P
iRepresent service priority, C
PRepresent service with different priority levels to interrupt the unit loss that brings.
The above is merely preferred embodiment of the present invention, is not to be used to limit protection scope of the present invention.
Claims (12)
1. definite method of a frequency spectrum reconfiguration is characterized in that, said method comprises:
Statistics network current frequency spectrum user mode;
After utilizing multiple frequency spectrum reconfiguration method that said network is carried out frequency spectrum reconfiguration, write down and upgrade the frequency spectrum user mode and the service related information of the network behind the different spectral reconstructing method frequency spectrum reconfiguration respectively;
According to frequency spectrum user mode and service related information, obtain each self-corresponding frequency spectrum reconfiguration benefit of frequency spectrum reconfiguration method;
Through the frequency spectrum reconfiguration benefit multiple frequency spectrum reconfiguration method is assessed, confirmed the optimum frequency spectrum reconfiguration method of said network.
2. method according to claim 1 is characterized in that, said statistics network current frequency spectrum user mode is:
The maximum spectrum that statistics network is current.
3. method according to claim 1 is characterized in that, saidly writes down respectively and upgrades and utilize the different spectral reconstructing method to carry out that the frequency spectrum user mode and the service related information of network is behind the frequency spectrum reconfiguration:
Write down respectively and upgrade and utilize the different spectral reconstructing method to carry out maximum spectrum and service disconnection number, the service delay of network behind the frequency spectrum reconfiguration.
4. method according to claim 1 is characterized in that, according to frequency spectrum user mode and service related information, obtains each self-corresponding frequency spectrum reconfiguration benefit of frequency spectrum reconfiguration method and is:
According to maximum spectrum and the service related information before and after the network reconfiguration, the benefit of service disconnection that benefit that the propagation delay time change produces behind the benefit that availability of frequency spectrum raising produces behind the calculating frequency spectrum reconfiguration, the frequency spectrum reconfiguration and frequency spectrum reconfiguration cause and/or time delay generation is lost;
After propagation delay time changes the benefit summation that produces behind the benefit that the availability of frequency spectrum behind the frequency spectrum reconfiguration improve is produced and the frequency spectrum reconfiguration, deduct the benefit loss that service disconnection that frequency spectrum reconfiguration causes and/or time delay produce and obtain the frequency spectrum reconfiguration benefit.
5. method according to claim 1 is characterized in that, saidly through the frequency spectrum reconfiguration benefit multiple frequency spectrum reconfiguration method is assessed, and confirms that the optimum frequency spectrum reconfiguration method of said network is:
The frequency spectrum reconfiguration benefit that more a plurality of frequency spectrum reconfiguration methods are corresponding, the frequency spectrum reconfiguration method that maximum spectrum reconstruct benefit is corresponding is confirmed as the optimum frequency spectrum reconfiguration method of said network.
6. according to each described method of claim 1 to 5, it is characterized in that said each the self-corresponding frequency spectrum reconfiguration benefit of frequency spectrum reconfiguration method that obtains is:
Utilize
Calculate each self-corresponding frequency spectrum reconfiguration benefit of frequency spectrum reconfiguration method;
Wherein, N representes link sum in the said network, Δ F
nRepresent before the frequency spectrum reconfiguration on the n bar link difference of maximum spectrum after the maximum spectrum and frequency spectrum reconfiguration, C
FThe cost of representation unit frequency spectrum; Δ E
nBe the difference of the frequency spectrum number that takies continuously before and after the n bar link frequency spectrum reconfiguration, C
ERepresent the cost of each continuous frequency spectrum; M represents the Network sum, and i representes i business, Δ D
iBe the difference of the original path of business with new dispense path jumping figure, C
DCost for each jumping; T
iThe time delay of representing professional i, C
TThe loss that the representation unit time delay is brought; P
iRepresent the priority of professional i, C
PRepresent service with different priority levels to interrupt the unit loss that brings.
7. frequency spectrum reconfiguration fixed system really is characterized in that said system comprises: statistic unit and assessment unit; Wherein,
Said statistic unit; Be used for statistics network current frequency spectrum user mode; After utilizing multiple frequency spectrum reconfiguration method that said network is carried out frequency spectrum reconfiguration, write down respectively and upgrade and utilize the different spectral reconstructing method to carry out the frequency spectrum user mode and the service related information of network behind the frequency spectrum reconfiguration;
Said assessment unit is used for according to frequency spectrum user mode and service related information, obtains each self-corresponding frequency spectrum reconfiguration benefit of frequency spectrum reconfiguration method; Through the frequency spectrum reconfiguration benefit multiple frequency spectrum reconfiguration method is assessed, confirmed the optimum frequency spectrum reconfiguration method of said network.
8. system according to claim 7 is characterized in that, said statistic unit specifically is used for the current maximum spectrum of statistics network.
9. system according to claim 7 is characterized in that, said statistic unit specifically is used for writing down respectively and upgrades and utilize the different spectral reconstructing method to carry out maximum spectrum and service disconnection number, the service delay of network behind the frequency spectrum reconfiguration.
10. system according to claim 7; It is characterized in that; Said assessment unit; Specifically be used for according to maximum spectrum and service related information before and after the network reconfiguration, the benefit of service disconnection that benefit that the propagation delay time change produces behind the benefit that availability of frequency spectrum raising produces behind the calculating frequency spectrum reconfiguration, the frequency spectrum reconfiguration and frequency spectrum reconfiguration cause and/or time delay generation is lost; After propagation delay time changes the benefit summation that produces behind the benefit that the availability of frequency spectrum behind the frequency spectrum reconfiguration improve is produced and the frequency spectrum reconfiguration, deduct the benefit loss that service disconnection that frequency spectrum reconfiguration causes and/or time delay produce and obtain the frequency spectrum reconfiguration benefit.
11. system according to claim 7; It is characterized in that; Said assessment unit specifically is used for the corresponding frequency spectrum reconfiguration benefit of more a plurality of frequency spectrum reconfiguration methods, and the frequency spectrum reconfiguration method that maximum spectrum reconstruct benefit is corresponding is confirmed as the optimum frequency spectrum reconfiguration method of said network.
12., it is characterized in that said assessment unit specifically is used for utilizing according to each described system of claim 7 to 11
Calculate the frequency spectrum reconfiguration benefit of the various correspondences of frequency spectrum reconfiguration method;
Wherein, N representes link sum in the said network, Δ F
nRepresent before the frequency spectrum reconfiguration on the n bar link difference of maximum spectrum after the maximum spectrum and frequency spectrum reconfiguration, C
FThe cost of representation unit frequency spectrum; Δ E
nBe the difference of the frequency spectrum number that takies continuously before and after the n bar link frequency spectrum reconfiguration, C
ERepresent the cost of each continuous frequency spectrum; M represents the Network sum, and i representes i business, Δ D
iBe the difference of the original path of business with new dispense path jumping figure, C
DCost for each jumping; T
iThe time delay of representing professional i, C
TThe loss that the representation unit time delay is brought; P
iRepresent the priority of professional i, C
PRepresent service with different priority levels to interrupt the unit loss that brings.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012100671967A CN102594701A (en) | 2012-03-14 | 2012-03-14 | Frequency spectrum reconstruction determination method and corresponding system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012100671967A CN102594701A (en) | 2012-03-14 | 2012-03-14 | Frequency spectrum reconstruction determination method and corresponding system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN102594701A true CN102594701A (en) | 2012-07-18 |
Family
ID=46482917
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2012100671967A Pending CN102594701A (en) | 2012-03-14 | 2012-03-14 | Frequency spectrum reconstruction determination method and corresponding system |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN102594701A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107493197A (en) * | 2017-08-29 | 2017-12-19 | 中国科学院计算技术研究所 | A kind of topology reconstruction method for optical-fiber network |
| CN109905784A (en) * | 2019-01-16 | 2019-06-18 | 国家电网有限公司 | A kind of traffic reconfiguration method and apparatus of optical-fiber network Wavelength Assignment |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1507618A (en) * | 2001-11-02 | 2004-06-23 | ���µ�����ҵ��ʽ���� | Encoding and decoding device |
| WO2008097059A1 (en) * | 2007-02-09 | 2008-08-14 | Samsung Electronics Co., Ltd. | Method and apparatus for transmitting/receiving data in a communication system using multiple frequency bands |
| CN101754226A (en) * | 2009-12-21 | 2010-06-23 | 西安电子科技大学 | Reconstruction method of terminal under environment of cognitive radio network |
| CN102194457A (en) * | 2010-03-02 | 2011-09-21 | 中兴通讯股份有限公司 | Audio encoding and decoding method, system and noise level estimation method |
| CN102194458A (en) * | 2010-03-02 | 2011-09-21 | 中兴通讯股份有限公司 | Spectral band replication method and device and audio decoding method and system |
-
2012
- 2012-03-14 CN CN2012100671967A patent/CN102594701A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1507618A (en) * | 2001-11-02 | 2004-06-23 | ���µ�����ҵ��ʽ���� | Encoding and decoding device |
| WO2008097059A1 (en) * | 2007-02-09 | 2008-08-14 | Samsung Electronics Co., Ltd. | Method and apparatus for transmitting/receiving data in a communication system using multiple frequency bands |
| CN101754226A (en) * | 2009-12-21 | 2010-06-23 | 西安电子科技大学 | Reconstruction method of terminal under environment of cognitive radio network |
| CN102194457A (en) * | 2010-03-02 | 2011-09-21 | 中兴通讯股份有限公司 | Audio encoding and decoding method, system and noise level estimation method |
| CN102194458A (en) * | 2010-03-02 | 2011-09-21 | 中兴通讯股份有限公司 | Spectral band replication method and device and audio decoding method and system |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107493197A (en) * | 2017-08-29 | 2017-12-19 | 中国科学院计算技术研究所 | A kind of topology reconstruction method for optical-fiber network |
| CN107493197B (en) * | 2017-08-29 | 2019-11-29 | 中国科学院计算技术研究所 | A kind of topology reconstruction method for optical-fiber network |
| CN109905784A (en) * | 2019-01-16 | 2019-06-18 | 国家电网有限公司 | A kind of traffic reconfiguration method and apparatus of optical-fiber network Wavelength Assignment |
| CN109905784B (en) * | 2019-01-16 | 2021-10-15 | 国家电网有限公司 | Service reconstruction method and equipment for optical network wavelength allocation |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| Klinkowski et al. | Survey of resource allocation schemes and algorithms in spectrally-spatially flexible optical networking | |
| EP2571184B1 (en) | Allocation of spectral capacity in a wavelength-division multiplexing optical network | |
| US9654248B2 (en) | Optical data transmission method and apparatus | |
| CN103748817B (en) | Routing and bandwidth assignment for flexible grid wavelength switched optical networks | |
| EP3343815B1 (en) | Method and system for assigning resources in optical transport networks | |
| CN103051547B (en) | The route of resource perception and frequency spectrum resource allocation method and system in elastic optical network | |
| CN104836751B (en) | The optical-fiber network frequency spectrum distributing method of single path business separation-merging based on frequency spectrum perception | |
| CN105245307B (en) | Method and apparatus for determining communication path in a communication network | |
| CN106953710B (en) | The method for routing of the distribution of minimum cost frequency spectrum and fragment perception in elastic optical network | |
| CN105827528B (en) | A kind of route selection method suitable for the flexible optical-fiber network of frequency spectrum | |
| CN109995435B (en) | Virtual network mapping method and system based on multi-fiber core optical network | |
| JP7081574B2 (en) | Optical network control device and optical network control method | |
| EP2725721B1 (en) | Method for dynamic allocation of shared resources in a time-frequency plane and related device | |
| DK1851919T3 (en) | Bandwidth allocation for telecommunications networks | |
| CN103053126B (en) | For the method and apparatus of the dynamic wavelength assignment in wavelength switched optical network | |
| CN102594701A (en) | Frequency spectrum reconstruction determination method and corresponding system | |
| CN102439886B (en) | Method and device for computing path | |
| CN106506362A (en) | A kind of elastic optical network multilink fault probability guard method of minimum failure risk loss | |
| CN105721130A (en) | Spectrum distribution method based on sub-band virtual concatenation technology in elastic optical network | |
| JP4685935B2 (en) | Hybrid optical / data network | |
| JP5273815B2 (en) | Traffic control method, traffic control device, control program, recording medium, and optical communication system | |
| CN103716183A (en) | Management method and management device of optical transport network | |
| Gumaste | Light-trail and light-frame architectures for optical networks | |
| CN104054287B (en) | Method of allocating bandwidth in optical network | |
| Kmiecik et al. | A performance study of dynamic routing algorithm for SDM translucent optical networks with assistive storage |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C12 | Rejection of a patent application after its publication | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20120718 |