CN106714185B - A kind of resource allocation methods and device of many-many communication network - Google Patents
A kind of resource allocation methods and device of many-many communication network Download PDFInfo
- Publication number
- CN106714185B CN106714185B CN201710047311.7A CN201710047311A CN106714185B CN 106714185 B CN106714185 B CN 106714185B CN 201710047311 A CN201710047311 A CN 201710047311A CN 106714185 B CN106714185 B CN 106714185B
- Authority
- CN
- China
- Prior art keywords
- user
- information
- received
- signal
- many
- 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.)
- Active
Links
Classifications
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W16/00—Network planning, e.g. coverage or traffic planning tools; Network deployment, e.g. resource partitioning or cells structures
- H04W16/02—Resource partitioning among network components, e.g. reuse partitioning
- H04W16/12—Fixed resource partitioning
Landscapes
- Engineering & Computer Science (AREA)
- Computer Networks & Wireless Communication (AREA)
- Signal Processing (AREA)
- Mobile Radio Communication Systems (AREA)
Abstract
The embodiment of the invention provides the resource allocation methods and device of a kind of many-many communication network, which comprises the geographic area where many-many communication network is divided into multiple subregions, and the available band fixed for each subregion distribution in advance；User positioned at each subregion obtains corresponding communication band；Each user selects current time slot to carry out information broadcast and reception by preset rules.Using the embodiment of the present invention, realizes and communication interference is not present between the neighboring user of different zones.
Description
Technical field
The present invention relates to communication resource distribution technical fields, more particularly to a kind of resource allocation of many-many communication network
Method.
Background technique
Many-many communication network refers to that in the multinode network of no central node control, the user of different nodes is sharp
Message is broadcast to the communication of the user of other nodes with certain resource.For example, the dynamic networks such as car networking and unmanned plane net
The communication mode of the multi-to-multi exactly used.
In the prior art, for using many-many communication mode dynamic network (hereinafter referred to as many-many communication network),
It needs efficiently to distribute the communication resource in carrying out communication process, allows what multiple users did not collide message is broadcast to other
People.
The communication resource is primarily referred to as time resource and frequency resource, i.e. time interval resource and band resource.Currently, common money
Source distribution method, comprising: synchronization scheme, concrete scheme are: the user of different nodes needs when a defined time slot originates
It carves and initiates broadcast, and the broadcast of time slot end time terminates.In this way, will deposit at a time, multiple location distributions are closer
User simultaneously initiate to communicate, if the frequency used is identical, there is the interference problem of homogenous frequency signal.
Summary of the invention
The resource allocation methods and device for being designed to provide a kind of many-many communication network of the embodiment of the present invention, with reality
Communication interference is not present between the neighboring user of existing different zones.Specific technical solution is as follows:
A kind of resource allocation methods of many-many communication network, which comprises
The geographic area where many-many communication network is divided into multiple subregions in advance, and is distributed for each subregion
Fixed available band；
User positioned at each subregion obtains corresponding communication band；
Each user selects current time slot to carry out information broadcast and reception by preset rules.
Optionally, the described the step of geographic area where many-many communication network is divided into multiple subregions in advance,
Include:
According to minimum Signal to Interference plus Noise Ratio demand is met, the maximum distance of the geographic area is calculated；
According to the maximum distance, the geographic area is divided into preset quantity sub-regions.
Optionally, the maximum distance embodies are as follows:
Wherein, φ is path loss constant, and α is path loss exponent, σ2It is the noise power of user, γTIt is described minimum
Signal to Interference plus Noise Ratio, p are the edge customer signal transmitting powers of the geographic area.
Optionally, the step of each user selects current time slot to carry out information broadcast and receive by preset rules,
Include:
User k is with probability qkCurrent time slot is selected to carry out information broadcast and reception；
Wherein,
NkThe number of time slots of delay requirement is broadcasted for the information of the user k.
Optionally, the method also includes:
It has carried out the information broadcast step whether successful with received user detection transmission information and detection reception information is
The successful step of no demodulation；
Information broadcast and received user or the user for sending information failure are not carried out, are selected again by the preset rules
Current time slot carries out information broadcast and reception；The successful user of information is sent to receive information and demodulate.
Optionally, the information y for having carried out information broadcast and having been received with received userk, embody are as follows:
Wherein, gkiIt is the channel from user i to user k, siIt is the power normalization modulation symbol that user i is sent, p is to use
The transmission power of family i, nkIt is the noise that user k is received, K is the number of user, uiIndicate whether user i is wide in current time slots
Information is broadcast, if so, uiValue is 1, if it is not, uiValue is 0；
The detection sends the whether successful step of information, comprising:
Work as ukWhen=1, i.e., the described user k has sent information in current time slots, according to the information y receivedkJudge whether to deposit
In the interference of other users, if it is not, sending information success, otherwise, information failure is sent；
The detection receives whether information demodulates successful step, comprising:
Work as ukWhen=0, i.e., the described user does not send information in current time slots, in the signal that the user k is received,
When the Signal to Interference plus Noise Ratio that at least there is signal all the way meets preset condition, determination is demodulated successfully, is otherwise demodulated unsuccessful.
Optionally, the information y that the basis receiveskJudge whether there is the interference step of other users, comprising:
The information y for having carried out information broadcast and having been received with received userkAfter eliminating itself interference, obtained letter
Breath isIt embodies are as follows:
InWhen, it is determined as that there is no interference；
InWhen, it is determined to have interference；
It is described in the signal that the user k is received, the Signal to Interference plus Noise Ratio that at least there is signal all the way meets preset condition
When, determination demodulates successfully, otherwise demodulates unsuccessful, comprising:
In the signal that the user k is received, at least there is the Signal to Interference plus Noise Ratio γ that signal l all the way makes the user kk
Not less than the minimum Signal to Interference plus Noise Ratio γT, determining to demodulate successfully, otherwise demodulation failure；
Wherein,
Wherein, dkjIndicate the communication distance of user j to user k, φ is path loss constant, and α is path loss exponent, σ2
It is the noise power of user, ujUser j is indicated whether in current time slots broadcast message, if so, ujValue is 1, if it is not, ujValue is 0, p
It is the edge customer signal transmitting power of the geographic area.
A kind of resource allocation device of many-many communication network, described device include:
Division module for the geographic area where many-many communication network to be divided into multiple subregions in advance, and is
The fixed available band of each subregion distribution；
Module is obtained, the user for being located at each subregion obtains corresponding communication band；
Processing module selects current time slot to carry out information broadcast and reception for each user by preset rules.
Optionally, the division module, comprising:
Computational submodule, for calculating the maximum distance of the geographic area according to minimum Signal to Interference plus Noise Ratio demand is met；
Submodule is divided, for according to the maximum distance, the geographic area to be divided into preset quantity sub-regions.
Optionally, the maximum distance embodies are as follows:
Wherein, φ is path loss constant, and α is path loss exponent, σ2It is the noise power of user, γTIt is described minimum
Signal to Interference plus Noise Ratio, p are the edge customer signal transmitting powers of the geographic area.
Preferably, the processing module, is specifically used for:
User k is with probability qkCurrent time slot is selected to carry out information broadcast and reception；
Wherein,
NkThe number of time slots of delay requirement is broadcasted for the information of the user k.
Optionally, described device further include:
Detection module detects send whether information is successful and detection receives for having carried out information broadcast and received user
Whether information demodulates success；
Again processing module, for not carrying out information broadcast and received user or the user for sending information failure, again
Current time slot is selected to carry out information broadcast and reception by the preset rules；The successful user of information is sent to receive information and solve
It adjusts.
Optionally, the information y for having carried out information broadcast and having been received with received userk, embody are as follows:
Wherein, gkiIt is the channel from user i to user k, siIt is the power normalization modulation symbol that user i is sent, p is to use
The transmission power of family i, nkIt is the noise that user k is received, K is the number of user, uiIndicate whether user i is wide in current time slots
Information is broadcast, if so, uiValue is 1, if it is not, uiValue is 0；
The detection module, comprising: the first detection sub-module and the second detection sub-module；
First detection sub-module, for working as ukWhen=1, i.e., the described user k has sent information in current time slots, according to reception
The information y arrivedkThe interference of other users is judged whether there is, if it is not, sending information success, otherwise, information is sent and loses
It loses；
Second detection sub-module, for working as ukWhen=0, i.e., the described user does not send information in current time slots, described
In the signal that user k is received, when the Signal to Interference plus Noise Ratio that at least there is signal all the way meets preset condition, determination is demodulated successfully, no
It then demodulates unsuccessful.
Optionally, first detection sub-module, is specifically used for:
The information y for having carried out information broadcast and having been received with received userkAfter eliminating itself interference, obtained letter
Breath isIt embodies are as follows:
InWhen, it is determined as that there is no interference；
InWhen, it is determined to have interference；
Second detection sub-module, is specifically used for:
In the signal that the user k is received, there is the Signal to Interference plus Noise Ratio γ that signal l all the way makes the user kkIt is not small
In the minimum Signal to Interference plus Noise Ratio γT, determining to demodulate successfully, otherwise demodulation failure；
Wherein,
Wherein, dkjIndicate the communication distance of user j to user k, φ is path loss constant, and α is path loss exponent, σ2
It is the noise power of user, ujUser j is indicated whether in current time slots broadcast message, if so, ujValue is 1, if it is not, ujValue is 0, p
It is the edge customer signal transmitting power of the geographic area.
The resource allocation methods and device of a kind of many-many communication network provided in an embodiment of the present invention, according in advance will be more
Geographic area where many-to-many communication network is divided into multiple subregions, and the available band fixed for each subregion distribution；
To realize the division of communication zone.User positioned at each subregion obtains corresponding communication band；Each user is by pre-
If rule selects current time slot to carry out information broadcast and reception.In turn, the neighboring user of different zones uses the fixation divided
Frequency band is communicated, it is achieved that communication solves multiple users in the prior art there is no interference between neighboring user
The reason closer user of position distribution initiates to communicate the interference problem there may be homogenous frequency signal simultaneously.Therefore, realization has been reached not
With the purpose that communication interference is not present between the neighboring user in region.
Detailed description of the invention
In order to more clearly explain the embodiment of the invention or the technical proposal in the existing technology, to embodiment or will show below
There is attached drawing needed in technical description to be briefly described, it should be apparent that, the accompanying drawings in the following description is only this
Some embodiments of invention for those of ordinary skill in the art without creative efforts, can be with
It obtains other drawings based on these drawings.
Fig. 1 is a kind of flow diagram of the resource allocation methods of many-many communication network provided in an embodiment of the present invention；
Fig. 2 is another process signal of the resource allocation methods of many-many communication network provided in an embodiment of the present invention
Figure；
Fig. 3 is a kind of structural schematic diagram of the resource allocation device of many-many communication network provided in an embodiment of the present invention；
Fig. 4 is a kind of structural schematic diagram of the resource allocation device of many-many communication network provided in an embodiment of the present invention.
Specific embodiment
Following will be combined with the drawings in the embodiments of the present invention, and technical solution in the embodiment of the present invention carries out clear, complete
Site preparation description, it is clear that described embodiments are only a part of the embodiments of the present invention, instead of all the embodiments.It is based on
Embodiment in the present invention, it is obtained by those of ordinary skill in the art without making creative efforts every other
Embodiment shall fall within the protection scope of the present invention.
Referring to Fig. 1, Fig. 1 is a kind of process of the resource allocation methods of many-many communication network provided in an embodiment of the present invention
Schematic diagram, the method includes the steps:
Geographic area where many-many communication network is divided into multiple subregions in advance by S101, and is each sub-district
The fixed available band of domain distribution.
It is understood that the geographical coverage area where many-many communication network may be very big, the embodiment of the present invention
In can be divided into subregion, and the communication band fixed for each subregion distribution, sub-district to geographic area in advance
The range in domain can be equal, be also possible to unequal, the embodiment of the present invention is not limited thereof herein.
Illustratively, the geographic area where the vehicle of traveling is 500 meters, is divided into 5 sub-regions in advance, and be each
The frequency band of the fixed communication of subregion distribution, subregion and relationship such as 1 institute of table between the available band of subregion distribution
Show.In addition, the communication band of subregion can be it is identical be also possible to it is different.Frequency band between zones is different
When, there is no interference for the transmission signal of user in different zones.
Table 1
| Subregion 1 | Subregion 2 | Subregion 3 | Subregion 4 | Subregion 5 | |
| Communication band (KHz) | 100-150 | 150-200 | 200-250 | 100-150 | 150-200 |
In the embodiment of the present invention, the maximum distance of subregion can be calculated according to minimum Signal to Interference plus Noise Ratio demand is met；According to
Geographic area is divided into preset quantity sub-regions by maximum distance.It is understood that calculate maximum distance with
Afterwards, the range of subregion is in maximum distance.According to meet the needs of minimum Signal to Interference plus Noise Ratio principle it is found that maximum communication away from
Minimum Signal to Interference plus Noise Ratio demand can be met from interior all users, to ensure that the communication quality of subregion.
It is understood that distance of the edge customer in region apart from other users is farthest, so guaranteeing edge use
Family communication can guarantee the normal communication of edge customer in the case where being equal to minimum Signal to Interference plus Noise Ratio demand.
Specifically, maximum distance embodies in the case where edge customer communication is equal to minimum Signal to Interference plus Noise Ratio demand
Are as follows:
Wherein, φ is path loss constant, and α is path loss exponent, σ2It is the noise power of user, γTIt is described minimum
Signal to Interference plus Noise Ratio, p are the edge customer signal transmitting powers of the geographic area.It is understood that φ, α and σ2With subregion
The environmental correclation at place can directly be preset by the environment at place, minimum Signal to Interference plus Noise Ratio by user receiver
Performance determines that therefore, minimum Signal to Interference plus Noise Ratio can obtain therewith after the receiver of user determines；Assuming that all user's transmittings
Power is identical, and subscriber signal sends the transmitter transmitting that power is user.Illustratively, the maximum distance calculated is
100 meters, then the distance of subregion can be 80 meters, 70 meters, 50 meters, 30 meters or 10 meters, etc..The embodiment of the present invention is only
It is merely exemplary, does not constitute the specific restriction to the embodiment of the present invention.
S102, the user positioned at each subregion obtain corresponding communication band.
It is understood that each subregion may include multiple users, each user first has to obtain the subregion pair
The communication band answered, so as to the subsequent broadcast and reception for carrying out information.Illustratively, the corresponding communication band of subregion 1 is
100KHz-150KHz, each user in subregion can obtain the communication band of 100KHz-150KHz when entering the subregion
Resource.It also will use the communication band when thering is new user to be added in subregion.For example, in car networking system, often
The corresponding relationship of each subregion and communication band is stored in advance in a vehicle, it, should after a vehicle enters a certain subregion
Vehicle can obtain corresponding communication band from the corresponding relationship of storage.
S103, each user select current time slot to carry out information broadcast and reception by preset rules.
It is understood that the user in each subregion selects a current time slot, in the enterprising row information of the time slot
Broadcast and receive information, in the prior art user select time slot mode have very much, can using allocate in advance time slot, select
Current any time slot etc..In the embodiment of the present invention, can using each user by preset rules select current time slot into
Row information broadcast and reception, specific user k is with probability qkCurrent time slot is selected to carry out information broadcast and reception；
Wherein,NkThe number of time slots of delay requirement is broadcasted for the information of user k.
Illustratively, the information broadcast time delay that user k currently needs to send is 5ms, and the corresponding number of time slots of 5ms is 5, that
User k will carry out information broadcast with 1/5 probability selection current time slots.It therefore, can be in the case where time interval resource abundance
Guarantee that the information sent is needed to be sent in time delay.
Using present invention embodiment shown in FIG. 1, according in advance by the geographic area division where many-many communication network
For multiple subregions, and the available band fixed for each subregion distribution；To realize the division of communication zone, it is located at every
The user of sub-regions obtains corresponding communication band；Each user selects current time slot to carry out information broadcast by preset rules
And reception.And then the neighboring users of different zones is communicated using the fixed frequency band of division, it is achieved that neighboring user it
Between communication there is no interference, solve the closer user of multiple user's location distributions in the prior art and meanwhile initiate communicate can
There can be the interference problem of homogenous frequency signal.Therefore, reached and signal of communication is not present between the neighboring user for realizing different zones
The purpose of interference.
Referring to fig. 2, Fig. 2 is another stream of the resource allocation methods of many-many communication network provided in an embodiment of the present invention
Journey schematic diagram on the basis of embodiment shown in Fig. 1, increases: S104, S105 after step 103；Wherein,
S104, has carried out information broadcast and received user detects send whether information is successful and whether detection receives information
It demodulates successfully.
It is understood that the user for carrying out information broadcast in subregion can receive information simultaneously, user needs basis
It receives information and carries out whether detection transmission information succeeds, specifically, having carried out what information broadcast was received with received user
Information yk, embody are as follows:
Wherein, gkiIt is the channel from user i to user k, siIt is the power normalization modulation symbol that user i is sent, p is to use
The transmission power of family i, nkIt is the noise that user k is received, K is the number of user, uiIndicate whether user i is wide in current time slots
Information is broadcast, if so, uiValue is 1, if it is not, uiValue is 0.It is understood that the receiver of user i can receive in K user
The information that other users send, the power of the signal transmitting power p comprising each user and each user are returned in information
One changes modulation symbol si, noise n can be also received additionally, due to the receiver of the because users such as communication channelk。
In addition, working as ukWhen=1, i.e., user k has sent information in current time slots, can be according to the information y receivedkJudgement
With the presence or absence of the interference of other users, if do not interfered with, information success is sent, otherwise, sends information failure.
Optionally, the embodiment of the invention also provides the jamming programs for judging whether there is other users, comprising: has carried out
The information y that the user of information broadcast receiveskAfter eliminating itself interference, available information isIt embodies are as follows:
InWhen, it is determined as that there is no interference；InWhen, it is judged to depositing
It is interfering.
It is understood that the user k for having carried out information broadcast also will receive itself in addition to receiving the message of other users
Interference information, by eliminate itself interference after information square with threshold value p φ dmax -α+σ2It is compared, InLess than threshold
When value, be determined as on the time slot only have user k carried out information broadcast, be determined as there is no interference, then user k send information at
Function；InWhen not less than threshold value, it is determined as on the time slot in addition to there is also other users also to have carried out information broadcast by user k,
It is determined to have interference, then it is unsuccessful to send information by user k.It is thereby achieved that carrying out monitoring it after user sends information
Whether his user has sent information, to reduce the probability for sending information collision, improves the utilization rate of Internet resources.
In the embodiment of the present invention, detection receives whether information demodulates successful step, comprising: works as ukWhen=0, i.e. user k
Information is not sent in current time slots, in the signal that user k is received, the Signal to Interference plus Noise Ratio that at least there is signal all the way meets in advance
If when condition, determination is demodulated successfully, otherwise demodulate unsuccessful.It is understood that at the time of user k does not send information,
The information that other users are sent can be received as recipient, in received signal, the letter that at least there is signal l all the way is dry
It makes an uproar and compares γkNot less than minimum Signal to Interference plus Noise Ratio γT, it is determined that it demodulates successfully, otherwise demodulation failure；
Wherein,
Wherein, dkjIndicate the communication distance of user j to user k, φ is path loss constant, and α is path loss exponent, σ2
It is the noise power of user, ujUser j is indicated whether in current time slots broadcast message, if so, ujValue is 1, if it is not, ujValue is 0, p
It is the edge customer signal transmitting power of the geographic area.It is understood that arg indicate inverse function, will so thatValue maximum when corresponding j, be denoted as l；Signal to Interference plus Noise Ratio γkThe letter sent for the user l that user k is received
Number intensity value isThe ratio of the signal strength indication and the sum of noise power that are sent with received user's other users.
S105 does not carry out information broadcast and received user or the user for sending information failure, presses the default rule again
Current time slot is then selected to carry out information broadcast and reception；The successful user of information is sent to receive information and demodulate.
It is understood that all do not carry out information broadcast and received user or the user for sending information failure, weight
Newly according to progress information broadcast and reception the step of S101, and is sent by successful user and to carry out monitoring for information and whether there is
Other users carry out message broadcast in the time slot, while the user can also receive information, and to the information received into
Row demodulation, so that the process that information sends and receives can be carried out simultaneously by realizing user.
Fig. 3 is a kind of structural schematic diagram of the resource allocation device of many-many communication network provided in an embodiment of the present invention,
Described device includes: division module 301, obtains module 302, processing module 303；Wherein,
Division module 301, for the geographic area where many-many communication network to be divided into multiple subregions in advance, and
For the available band that each subregion distribution is fixed；
Module 302 is obtained, the user for being located at each subregion obtains corresponding communication band；
Processing module 303 selects current time slot to carry out information broadcast and reception for each user by preset rules.
Optionally, the division module 301 may include: computational submodule, divide submodule；Wherein,
Computational submodule, for calculating the maximum distance of the geographic area according to minimum Signal to Interference plus Noise Ratio demand is met；
Submodule is divided, for according to the maximum distance, the geographic area to be divided into preset quantity sub-regions.
Specifically, the maximum distance embodies are as follows:
Wherein, φ is path loss constant, and α is path loss exponent, σ2It is the noise power of user, γTIt is described minimum
Signal to Interference plus Noise Ratio, p are the edge customer signal transmitting powers of the geographic area.
Specifically, the processing module 303, can be used for: user k is with probability qkCurrent time slot is selected to carry out information wide
It broadcasts and receives；
Wherein,
NkThe number of time slots of delay requirement is broadcasted for the information of user k.
Using present invention embodiment shown in Fig. 3, according in advance by the geographic area division where many-many communication network
For multiple subregions, and the available band fixed for each subregion distribution；To realize the division of communication zone, it is located at every
The user of sub-regions obtains corresponding communication band；Each user selects current time slot to carry out information broadcast by preset rules
And reception.And then the neighboring users of different zones is communicated using the fixed frequency band of division, it is achieved that neighboring user it
Between communication there is no interference, solve the closer user of multiple user's location distributions in the prior art and meanwhile initiate communicate can
There can be the interference problem of homogenous frequency signal.Therefore, reached and signal of communication is not present between the neighboring user for realizing different zones
The purpose of interference.
Fig. 4 is a kind of structural schematic diagram of the resource allocation device of many-many communication network provided in an embodiment of the present invention,
Increase on the basis of embodiment shown in Fig. 3 with lower module:
Detection module 304, for having carried out, information is broadcasted and whether received user detection transmission information is successful and detects
Receive whether information demodulates success；
Again processing module 305, for not carrying out information broadcast and received user or the user for sending information failure, weight
Newly current time slot is selected to carry out information broadcast and reception by the preset rules；It sends the successful user of information and receives information simultaneously
Demodulation.
Optionally, the information y for having carried out information broadcast and having been received with received userk, embody are as follows:
Wherein, gkiIt is the channel from user i to user k, siIt is the power normalization modulation symbol that user i is sent, p is to use
The transmission power of family i, nkIt is the noise that user k is received, K is the number of user, uiIndicate whether user i is wide in current time slots
Information is broadcast, if so, uiValue is 1, if it is not, uiValue is 0；
The detection module 304 may include: the first detection sub-module and the second detection sub-module；Wherein,
First detection sub-module, for working as ukWhen=1, i.e., the described user k has sent information in current time slots, according to reception
The information y arrivedkThe interference of other users is judged whether there is, if it is not, sending information success, otherwise, information is sent and loses
It loses；
Second detection sub-module, for working as ukWhen=0, i.e., the described user does not send information in current time slots, described
In the signal that user k is received, when the Signal to Interference plus Noise Ratio that at least there is signal all the way meets preset condition, determination is demodulated successfully, no
It then demodulates unsuccessful.
Specifically, first detection sub-module, can be used for: described to have carried out information broadcast and received user reception
The information y arrivedkAfter eliminating itself interference, obtained information isIt embodies are as follows:
InWhen, it is determined as that there is no interference；
InWhen, it is determined to have interference；
Second detection sub-module, can be used for:
In the signal that the user k is received, at least there is the Signal to Interference plus Noise Ratio γ that signal l all the way makes the user kk
Not less than the minimum Signal to Interference plus Noise Ratio γT, determining to demodulate successfully, otherwise demodulation failure；
Wherein,
Wherein, dkjIndicate the communication distance of user j to user k, φ is path loss constant, and α is path loss exponent, σ2
It is the noise power of user, ujUser j is indicated whether in current time slots broadcast message, if so, ujValue is 1, if it is not, ujValue is 0, p
It is the edge customer signal transmitting power of the geographic area.
It should be noted that, in this document, relational terms such as first and second and the like are used merely to a reality
Body or operation are distinguished with another entity or operation, are deposited without necessarily requiring or implying between these entities or operation
In any actual relationship or order or sequence.Moreover, the terms "include", "comprise" or its any other variant are intended to
Non-exclusive inclusion, so that the process, method, article or equipment including a series of elements is not only wanted including those
Element, but also including other elements that are not explicitly listed, or further include for this process, method, article or equipment
Intrinsic element.In the absence of more restrictions, the element limited by sentence "including a ...", it is not excluded that
There is also other identical elements in process, method, article or equipment including the element.
Each embodiment in this specification is all made of relevant mode and describes, same and similar portion between each embodiment
Dividing may refer to each other, and each embodiment focuses on the differences from other embodiments.Especially for system reality
For applying example, since it is substantially similar to the method embodiment, so being described relatively simple, related place is referring to embodiment of the method
Part explanation.
The foregoing is merely illustrative of the preferred embodiments of the present invention, is not intended to limit the scope of the present invention.It is all
Any modification, equivalent replacement, improvement and so within the spirit and principles in the present invention, are all contained in protection scope of the present invention
It is interior.
Claims (8)
1. a kind of resource allocation methods of many-many communication network, which is characterized in that the described method includes:
The geographic area where many-many communication network is divided into multiple subregions in advance, and is fixed for each subregion distribution
Available band；
User positioned at each subregion obtains corresponding communication band；
Each user selects current time slot to carry out information broadcast and reception by preset rules；
It has carried out information broadcast and received user detects send whether information is successful and detection receives whether information demodulates success；
Information broadcast and received user or the user for sending information failure are not carried out, it is again current by preset rules selection
Time slot carry out information broadcast and reception；The successful user of information is sent to receive information and demodulate；
The information y for having carried out information broadcast and having been received with received userk, embody are as follows:
Wherein, gkiBe from user i to the channel variable of user k andφ is path loss constant, and α is path damage
Lose index, dkiIt is the distance from user i to user k, siIt is the power normalization modulation symbol that user i is sent, p is user i
Send power, nkIt is the noise that user k is received, K is the number of user, uiIt indicates whether user i broadcasts in current time slots to believe
Breath, if so, uiValue is 1, if it is not, uiValue is 0, gkkBe from user k to the channel variable of user k andskIt is to use
The power normalization modulation symbol that family k is sent；
The detection sends whether information succeeds, comprising:
Work as ukWhen=1, i.e., the described user k has sent information in current time slots, according to the information y receivedkJudge whether there is it
Otherwise the interference of his user, sends information failure if it is not, sending information success；
The detection receives whether information demodulates success, comprising:
Work as ukWhen=0, i.e., the described user does not send information in current time slots, in the signal that the user k is received, at least
When meeting preset condition in the presence of the Signal to Interference plus Noise Ratio of signal all the way, determination is demodulated successfully, is otherwise demodulated unsuccessful.
2. the method according to claim 1, wherein described in advance by the geographic region where many-many communication network
Domain is divided into the step of multiple subregions, comprising:
According to minimum Signal to Interference plus Noise Ratio demand is met, the maximum distance of the geographic area is calculated；
According to the maximum distance, the geographic area is divided into preset quantity sub-regions.
3. according to the method described in claim 2, it is characterized in that, the maximum distance embodies are as follows:
Wherein, φ is path loss constant, and α is path loss exponent, σ2It is the noise power of user, γTIt is that the minimum letter is dry
It makes an uproar and compares, p is the edge customer signal transmitting power of the geographic area.
4. the method according to claim 1, wherein each user is selected current time slot by preset rules
The step of carrying out information broadcast and receiving, comprising:
User k is with probability qkCurrent time slot is selected to carry out information broadcast and reception；
Wherein,
NkThe number of time slots of delay requirement is broadcasted for the information of the user k.
5. according to the method described in claim 3, it is characterized in that, the information y that the basis receiveskJudge whether there is it
The interference step of his user, comprising:
The information y for having carried out information broadcast and having been received with received userkAfter eliminating itself interference, obtained information isIt embodies are as follows:
InWhen, it is determined as that there is no interference；
InWhen, it is determined to have interference；
It is described in the signal that the user k is received, when the Signal to Interference plus Noise Ratio that at least there is signal all the way meets preset condition, really
It demodulates successfully, otherwise demodulates unsuccessful calmly, comprising:
In the signal that the user k is received, at least there is the Signal to Interference plus Noise Ratio γ that signal l all the way makes the user kkIt is not small
In the minimum Signal to Interference plus Noise Ratio γT, determining to demodulate successfully, otherwise demodulation failure；
Wherein,
Wherein, dkjIndicate the communication distance of user j to user k, φ is path loss constant, and α is path loss exponent, σ2It is to use
The noise power at family, ujUser j is indicated whether in current time slots broadcast message, if so, ujValue is 1, if it is not, ujValue is that 0, p is institute
State the edge customer signal transmitting power of geographic area.
6. a kind of resource allocation device of many-many communication network, which is characterized in that described device includes:
Division module for the geographic area where many-many communication network to be divided into multiple subregions in advance, and is each
The fixed available band of subregion distribution；
Module is obtained, the user for being located at each subregion obtains corresponding communication band；
Processing module selects current time slot to carry out information broadcast and reception for each user by preset rules；
Detection module detects send whether information is successful and detection receives information for having carried out information broadcast and received user
Whether demodulation is successful；
Again processing module presses institute for not carrying out information broadcast and received user or the user for sending information failure again
Stating preset rules selects current time slot to carry out information broadcast and reception；The successful user of information is sent to receive information and demodulate；
The information y for having carried out information broadcast and having been received with received userk, embody are as follows:
Wherein, gkiBe from user i to the channel variable of user k andφ is path loss constant, and α is path damage
Lose index, dkiIt is the distance from user i to user k, siIt is the power normalization modulation symbol that user i is sent, p is user i
Send power, nkIt is the noise that user k is received, K is the number of user, uiIt indicates whether user i broadcasts in current time slots to believe
Breath, if so, uiValue is 1, if it is not, uiValue is 0, gkkBe from user k to the channel variable of user k andskIt is to use
The power normalization modulation symbol that family k is sent；
The detection module, comprising:
First detection sub-module, for working as ukWhen=1, i.e., the described user k has sent information in current time slots, according to what is received
Information ykThe interference of other users is judged whether there is, if it is not, sending information success, otherwise, sends information failure；
Second detection sub-module, for working as ukWhen=0, i.e., the described user does not send information in current time slots, in the user k
In the signal received, when the Signal to Interference plus Noise Ratio that at least there is signal all the way meets preset condition, determination is demodulated successfully, is otherwise demodulated
It is unsuccessful.
7. device according to claim 6, which is characterized in that the division module, comprising:
Computational submodule, for calculating the maximum distance of the geographic area according to minimum Signal to Interference plus Noise Ratio demand is met；
Submodule is divided, for according to the maximum distance, the geographic area to be divided into preset quantity sub-regions.
8. device according to claim 7, which is characterized in that the maximum distance embodies are as follows:
Wherein, φ is path loss constant, and α is path loss exponent, σ2It is the noise power of user, γTIt is that the minimum letter is dry
It makes an uproar and compares, p is the edge customer signal transmitting power of the geographic area.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710047311.7A CN106714185B (en) | 2017-01-22 | 2017-01-22 | A kind of resource allocation methods and device of many-many communication network |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710047311.7A CN106714185B (en) | 2017-01-22 | 2017-01-22 | A kind of resource allocation methods and device of many-many communication network |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN106714185A CN106714185A (en) | 2017-05-24 |
| CN106714185B true CN106714185B (en) | 2019-11-22 |
Family
ID=58909506
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710047311.7A Active CN106714185B (en) | 2017-01-22 | 2017-01-22 | A kind of resource allocation methods and device of many-many communication network |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN106714185B (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114450736A (en) * | 2019-09-19 | 2022-05-06 | 诺基亚通信公司 | Apparatus and method for unmanned aerial vehicle collision avoidance |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101822092A (en) * | 2007-10-09 | 2010-09-01 | 爱立信电话股份有限公司 | Method of managing radio resources in cellular radio system |
| CN103945551A (en) * | 2014-05-06 | 2014-07-23 | 中国联合网络通信集团有限公司 | Signal channel distribution method and system for wireless mesh network |
| CN104837212A (en) * | 2015-04-21 | 2015-08-12 | 北京邮电大学 | Channel access method and apparatus of wireless sensing network |
| CN105307216A (en) * | 2015-06-26 | 2016-02-03 | 哈尔滨工业大学深圳研究生院 | LTE-based radio resource allocation method of Internet of vehicles |
| CN106162902A (en) * | 2016-09-30 | 2016-11-23 | 陕西尚品信息科技有限公司 | A kind of method for channel allocation in multi-transceiver wireless Mesh netword |
-
2017
- 2017-01-22 CN CN201710047311.7A patent/CN106714185B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101822092A (en) * | 2007-10-09 | 2010-09-01 | 爱立信电话股份有限公司 | Method of managing radio resources in cellular radio system |
| CN103945551A (en) * | 2014-05-06 | 2014-07-23 | 中国联合网络通信集团有限公司 | Signal channel distribution method and system for wireless mesh network |
| CN104837212A (en) * | 2015-04-21 | 2015-08-12 | 北京邮电大学 | Channel access method and apparatus of wireless sensing network |
| CN105307216A (en) * | 2015-06-26 | 2016-02-03 | 哈尔滨工业大学深圳研究生院 | LTE-based radio resource allocation method of Internet of vehicles |
| CN106162902A (en) * | 2016-09-30 | 2016-11-23 | 陕西尚品信息科技有限公司 | A kind of method for channel allocation in multi-transceiver wireless Mesh netword |
Also Published As
| Publication number | Publication date |
|---|---|
| CN106714185A (en) | 2017-05-24 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| Bazzi et al. | Performance analysis of V2V beaconing using LTE in direct mode with full duplex radios | |
| CN102150404B (en) | Method and apparatus for signaling to a mobile device which set of training sequence codes to use for a communication link | |
| US8249001B2 (en) | Base station apparatus, mobile station apparatus, and method of assigning subcarriers | |
| Di et al. | NOMA-based low-latency and high-reliable broadcast communications for 5G V2X services | |
| EP3214783B1 (en) | Method and device for superimposition and demodulation of multiuser information transmission | |
| CN109219131A (en) | A kind of transmission method of data, terminal device and access network equipment | |
| WO2007081503A1 (en) | Apparatus and method for controlling channel switching in wireless networks | |
| CN108289017A (en) | Signal reception, sending method, the reception of control channel, sending method and device | |
| Jung et al. | Reducing consecutive collisions in sensing based semi persistent scheduling for cellular-V2X | |
| CN105763294A (en) | Control information processing method and device | |
| CN106714185B (en) | A kind of resource allocation methods and device of many-many communication network | |
| Alsarhan et al. | Cluster-based spectrum management using cognitive radios in wireless mesh network | |
| CN108521668A (en) | Water injection power suitable for 5G network N OMA systems distributes optimization method | |
| He et al. | QoE driven video streaming in cognitive radio networks: The case of single channel access | |
| CN104093193A (en) | Dynamic frequency scanning method used for short wave networking link building | |
| CN114257983A (en) | Direct link resource allocation method, first terminal device and second terminal device | |
| Jung et al. | Multi-packet interference in opportunistic large array broadcasts over disk networks | |
| CN111770473B (en) | Unlicensed spectrum access and carrier aggregation method and device for cellular internet of vehicles | |
| Dave | Spectrum sensing in cognitive radio: use of cyclo-stationary detector | |
| Jung et al. | Analysis of spatial pipelining in opportunistic large array broadcasts | |
| Singh et al. | An Energy Efficient Spectrum Sensing, Access and Handoff Concept using Look Up Table for Cognitive Radios Networks. | |
| CN111836183B (en) | Method and device for selecting sending resource pool and vehicle-mounted unit | |
| Harrold et al. | Distributed spectrum detection algorithms for cognitive radio | |
| CN113543298B (en) | Timing synchronization method and base station | |
| Preetham et al. | Relay, power and subchannel allocations for underlay non LOS OFDM-based cognitive networks under interference temperature |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant |