CN101001191A - Elastic burst ring system for implementing superhigh speed data transmission and transmission method thereof - Google Patents
Elastic burst ring system for implementing superhigh speed data transmission and transmission method thereof Download PDFInfo
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Abstract
This invention discloses an elastic burst ring system used in realizing super high speed data transmission and its data transmission method, in which, the ring includes an electronic layer, a photon layer, the electronic layer includes topological discovery, protection resuming, dispatch of upper layer data packets, flow control, QoS system of the electric field and control to the photon layer, QoS system of the light field and a light field conflict solving module, the photon layer includes a light signal transmission module based on a burst transmission mode, and the electronic layer and the photon layer exchange data by an accumulation/de-accumulation system, the electronic layer is linked up with the electric signals on its top, the photon layer is linked with high density wave-separating multiple light signals.
Description
Skill this area
The present invention relates to a kind of elastic burst ring system and node structure thereof that is used for optical internet, also relate to the method for utilizing this elastic burst ring to realize high speed data transfer, belong to the optical communication technique field.
Background technology
At present, be that the data service of representative begins to surpass traditional speech business with Internet, become the main object of communication network service.Compare with speech business, data service has the outstanding characteristics in self-similarity and sudden two aspects, and this just makes traditional is that the optical communication technique of core no longer is optimal selection with the time division multiplexing.On the other hand, the explosive growth of data service has produced the data to be transferred of magnanimity, and this makes existing communication network face the danger of bandwidth exhaustion.In order fundamentally to address this problem, people have proposed to utilize the technical solution of the direct bearer IP service of wavelength division multiplexing (WDM) system.This technical scheme is called as IP over WDM network technology.
IP over WDM also makes optical internet or IP optimize the light Internet, is meant direct internet at the light online operation.It is by high-performance WDM equipment, gigabit and the data communication network formed of bit route switching too, and comprehensive utilization IP technology and based on the optical-fiber network technology of WDM can directly link to each other or is connected to the optical-fiber network layer between switch and the router by optical fiber.IP over WDM makes full use of the huge transmission bandwidth that WDM technology brings and the powerful exchange capacity of high speed multi-layer switches; reasonably between IP layer and optical layers, realize distributing rationally of traffic engineering, protection recovery, QoS and network management etc., form a kind of advantages of simplicity and high efficiency network architecture.Adopt IP over WDM technology, can reduce the intermediate redundant part of each interlayer of network, the function that reduces each interlayer such as SDH, ATM and IP is overlapping, reduces operation of equipment, maintenance and management expense.Simultaneously, owing to saved ATM layer and SDH layer, so the efficiency of transmission height, overhead is low, and can be complementary with the asymmetric traffic flow characteristic of IP, makes full use of bandwidth, save the cost of Virtual network operator greatly, thereby reduced the expense that the user obtains multimedia communication service indirectly.
But, how to utilize huge " original bandwidth " that WDM technology provides (RawBandwidth), efficiently, flexibly, still exist many technical problems to need to solve for IP operation provides the service of transmission economically.
Resilient packet ring technology (RPR, IEEE 802.17) arises at the historic moment under this background.It has merged the advantage of ethernet technology and SDH technology, is topology with reverse dicyclo, realizes the transmission of business with the form of grouping.It switches more and more the communicated by letter attention of manufacturer and operator of ability and complete advantages such as QoS assurance mechanism with the flexibility of its height, ripe allocated bandwidth mechanism, protection fast.Become at present the mainstream technology of metropolitan area network gradually.Yet because the restriction of electric territory disposal ability, present RPR can only use in the network of 10Gbit/s and following speed thereof.Realize RPR network more at a high speed, full optical processing mechanism is imperative.
In the research of full light exchange treatment mechanism, OBS is with its no dependence to the optical storage medium, and the advantages such as flexibility of allocated bandwidth become the focus of people's research gradually.It combines the advantage of light path exchange (OCS) and light packet switching (OPS), has overcome their shortcomings separately again simultaneously, has become one of the most promising IP over WDM solution.Yet because the packet loss problem that light signal is caused by the unidirectional resource reservation mode of the three-dimensional constraining of time, space, frequency and OBS is but limiting the practical application of OBS always.How solving collision problem in the OBS has become insider's research emphasis.
Summary of the invention
Main purpose of the present invention provides a kind of ultrahigh speed elasticity burst ring system and node structure thereof that is used for optical internet.This system combines OBS and resilient packet ring technology advantage separately, has realized the ultrahigh speed transmission of business data flow in brand-new mode.
Another object of the present invention provides a kind of method of utilizing this elastic burst ring system to realize the ultrahigh speed transfer of data.
For realizing above-mentioned goal of the invention, the present invention adopts following technical scheme:
A kind of ultrahigh speed elasticity burst ring system comprises electronic shell and photon sphere, it is characterized in that:
Described electronic shell comprises Topology Discovery, protection recovery, data dispatch, flow control, electric territory QoS module and photon sphere control module, light territory QoS module, light territory conflict-solving module, described photon sphere have based on the burst transfer mode the optical signal transmission module, between described electronic shell and the photon sphere by converging/separate the aggregation scheme swap data;
Described electronic shell is connected the signal of telecommunication from its upper strata, and described photon sphere is connected the high density partial wave multiplex (MUX) light signal from its lower floor.
A kind of node of ultrahigh speed elasticity burst ring is used to constitute above-mentioned ultrahigh speed elasticity burst ring, comprises wavelength multiplexing/demultiplexing equipment, fibre delay line, fast tunable wave length beam splitting device in this node, it is characterized in that:
Conciliate between the multiplexing equipment at described wavelength multiplexing, light signal on the control wavelength is sent into the electric control bag and is generated and processing module after opto-electronic conversion, the light signal of other wavelength is then sent into described fast tunable wave length beam splitting device behind first fibre delay line, described wave length beam splitting device is divided into two bundles with the multiple wavelength optical signal of incident, a branch of direct output, a branch of in addition light modulation equipment that sends to, a part enters electric buffer memory after opto-electronic conversion, export one by one through electric domain scheduling mechanism, another part is directly exported through second fibre delay line;
Extraneous packet or frame are dispatched by electric domain scheduling mechanism, change into light signal by aggregation scheme after opto-electronic conversion and externally export.
Wherein, when this node when the enterprising industry of a certain wavelength is engaged in uploading, if there is express traffic to forward through this wavelength from upstream node, the light burst packets that the upstream is come will be by tuning reception, scheduling through photosphere enters described second fibre delay line then, continues to be forwarded to downstream node on this wavelength after certain delay again.
When this node place clashes, directly after opto-electronic conversion, entered by tuning non-the flash of light preceding an earthquake burst packets that receives in the local electric buffer memory at the light signal receiver side and to requeue, assemble, to send.
A kind of method of utilizing above-mentioned ultrahigh speed elasticity burst ring system to carry out transfer of data is characterized in that:
(1) when packet or frame arrive ring and go up node, at first enters corresponding formation queuing;
(2) carry out opto-electronic conversion by aggregation scheme, go forward side by side into photon sphere;
(3) select corresponding loop and wavelength by the scheduling of photon sphere;
(4) transmit by ultrahigh speed elasticity burst ring;
(5) in the destination, by the tuning receiving optical signals of the scheduling of photon sphere;
(6) carry out opto-electronic conversion, and enter electronic shell by separating aggregation scheme;
(7) enter corresponding formation queuing;
(8) select output port externally to export through the scheduling of electronic shell.
Wherein, packet in the transmit queue or frame pool the light burst packets and transmit, and simultaneously, the resource reservation module generates corresponding electric control bag, carry previous offset time with respect to described smooth burst packets and send.
Described offset time can dynamically arrange, and relevant with the priority forward of business.
Offset time will remain unchanged in the whole transport process of data once setting.
When the light burst packets produced conflict at a certain node place, this node can after a period of time continue described smooth outburst packet delay to be forwarded to downstream node on former wavelength by the buffer memory of fibre delay line again.
When the light burst packets produced conflict at a certain node place, node also can enter local queue and requeue with described smooth burst packets in local reception after opto-electronic conversion, be forwarded to downstream node then.
No matter adopt which kind of conflict settlement mechanism, all keep the offset time between electric control bag and the light burst packets constant.
Ultrahigh speed elasticity burst loop technique provided by the present invention combines OBS and resilient packet ring technology, evaded the packet loss problem that causes because of the resource reservation conflict in the OBS by suitable electric caching process, solve the electric territory in the Resilient Packet Ring by the full optical processing mechanism of data burst and handled bottleneck problem, thereby having replaced the complex network structures that needs multistage mapping in the legacy network with simple network configuration, is a competitive solution in the optical internet technology of future generation.
Description of drawings
The present invention is further illustrated below in conjunction with the drawings and specific embodiments.
Fig. 1 is the interior laminate layer structure of ultrahigh speed elasticity burst ring;
Fig. 2 is the network topology structure of ultrahigh speed elasticity burst ring;
Fig. 3 is the structural representation of ultrahigh speed elasticity burst link point;
Fig. 4 is the light burst packets in the ultrahigh speed elasticity burst ring and the frame structure schematic diagram of electric control bag;
Fig. 5 is packet and the transmission course of frame in ultrahigh speed elasticity burst ring;
Fig. 6 is the resource reservation schematic diagram of PODD agreement under the no conflict condition;
Fig. 7 is the resource reservation schematic diagram (level cache pattern) that PODD agreement under the conflict condition is arranged;
Fig. 8 is the resource reservation schematic diagram (L2 cache pattern) that PODD agreement under the conflict condition is arranged.
Embodiment
Ultrahigh speed elasticity burst ring system provided by the present invention is a kind of ring-like light network transmission system in conjunction with OBS and resilient packet ring technology.Referring to shown in Figure 1, the figure illustrates the interior laminate layer structure of ultrahigh speed elasticity burst ring.
This ultrahigh speed elasticity burst ring is divided into electronic shell (Electronic sub-layer) and photon sphere (Optical sub-layer) two parts, and they are realized with the signal of telecommunication (comprising IP, ATM, SDH etc.) on its upper strata respectively and are in being connected of DWDM (high density partial wave multiplex (MUX)) light signal of lower floor.Wherein, electronic shell is mainly finished Topology Discovery, protection recovers, the scheduling of upper layer data bag, flow control, electric territory QoS mechanism, and the light burst-switched is distinctive to converge/separates and converge and to functions such as the control of photon sphere, light territory QoS mechanism, the conflict solutions of light territory; Photon sphere is then finished light signal (burst packets) transmission based on the burst transfer mode.
As shown in Figure 2, ultrahigh speed elasticity burst ring adopts the network topology structure of the reverse dicyclo identical with Resilient Packet Ring.It is divided into interior ring (inter-ring) and outer (outer-ring) two parts.Packet can transmit on any one ring in two rings.As for specifically which encircling the transmission of enterprising line data at, can be according to conditional decisions such as at that time network condition, routing algorithm, fairness mechanism, QoS mechanism.
Node structure in the ultrahigh speed elasticity burst ring as shown in Figure 3.In this node, comprise wavelength multiplexing/demultiplexing equipment, fibre delay line, fast tunable wave length beam splitting device.Between wavelength multiplexing/demultiplexing equipment, the light signal on the control wavelength is sent into the electric control bag and is generated and processing module (ECP GEN/PRO﹠amp after opto-electronic conversion; Control), the light signal of other wavelength then behind fibre delay line (FDL1), send into fast tunable wave length beam splitting device (Tunable WavelengthsSplitter, TWS).The tunable wavelength beam splitter is divided into two bundles with the multiple wavelength optical signal of incident, a branch of direct output, a branch of in addition light modulation equipment that sends to, a part enters electric buffer memory after opto-electronic conversion, export one by one through electric domain scheduling mechanism, another part is directly exported through second fibre delay line; Extraneous packet or frame are dispatched by electric domain scheduling mechanism, change into light signal after opto-electronic conversion, externally export by aggregation scheme.Here, the electric territory of packet is handled, is converged/separate and the fringe node of functional equivalent in light burst exchange network such as converge.
Handle in the light territory and the conflict solution is the core technology content that will solve in the above-mentioned node structure.At the light signal receiver side, after multiple wavelength optical signal enters node, node will at first extract the control wavelength that is used to transmit the electric control bag, and the light signal on this wavelength sent into after opto-electronic conversion that the electric control bag generates and processing module to realize resource reservation and scheduling.The light signal of other wavelength is then sent into a fast tunable wave length beam splitting device behind a specific fibre delay line (FDL1).Fibre delay line (FDL1) is used for offsetting the processing delay (its effect is equal to the effect of the fibre delay line in optical outburst switching loop network Only Destination Delay (ODD) agreement) of the electric control bag at local node place.The wave length beam splitting device is a light signal beam splitting arrangement based on the fast tunable that can realize program controlled of wavelength.It can be divided into two bundles by the difference of wavelength with the multiple wavelength optical signal of incident.TWS with the first half among Fig. 3 is an example, and its following line output and right side output should be the set of different wave length.That is to say that in Fig. 3, TWS can extract 3 wavelength (perhaps being less than 3) arbitrarily and receive from the light signal of the multi-wavelength of incident, will remain wavelength simultaneously and directly export.
At the light signal transmitter side, can adopt fixing or tunable dual mode though send wavelength.But obviously, tuning emission mechanism can bring the network greater flexibility, so the present invention will adopt the fast tunable laser to realize the transmission of light burst packets.After the light burst packets generates, it will form light signal and transmit (referring to the pattern among Fig. 3 1) to downstream node together with the light signal of other wavelength that lead directly to from fast tunable wave length beam splitting device and the output signal of fibre delay line (FDL2) through the electric light conversion.
The tuning reception of wavelength has two kinds of driving mechanisms.The first has professional road down; It two is to have conflict to take place.The light burst packets is received with after opto-electronic conversion enters electric buffer memory, exports one by one through electric domain scheduling mechanism then.When conflict takes place, that is to say, when this node when the enterprising industry of this wavelength is engaged in uploading, there is express traffic (with respect to this node) to forward through this wavelength from upstream node, collision problem for the light signal (two light burst packets in other words) of avoiding the transmitting terminal oral-lateral, the light burst packets that the upstream is come will be by tuning reception, scheduling through photosphere enters fibre delay line (FDL2) then, continues to be forwarded to downstream node (referring to the pattern among Fig. 3 2) again after certain delay on this wavelength.
In addition, also need to prove, when this node place clashes, also can after opto-electronic conversion, be entered by tuning non-the flash of light preceding an earthquake burst packets that receives in the local electric buffer memory at the light signal receiver side and to requeue, assemble, to send (referring to the mode 3 among Fig. 3) without fibre delay line (FDL2).
Below, describe method and corresponding resource reservation mechanism thereof that this ultrahigh speed elasticity burst ring is realized the transmission of data ultrahigh speed in detail.
When packet or frame arrived ring and go up node, at first the scheduling according to information via electronic shell such as destination node, QoS grades entered corresponding formation queuing.Then, by aggregation scheme and carry out opto-electronic conversion, enter photon sphere.Then, carry out the selection of internal and external double-circular and wavelength by the scheduling of photon sphere, transmit by ultrahigh speed elasticity burst ring again according to destination node information, at that time network condition and condition such as fairness mechanism.In the destination, by the tuning receiving optical signals of the scheduling of photon sphere, carry out opto-electronic conversion again, and enter electronic shell by separating aggregation scheme; Enter corresponding formation queuing according to the QoS class information, select output port externally to export through the scheduling of electronic shell.
In above-mentioned transmission course, since various packets (comprising IP, ATM, Ethernet or the like) and SDH frame aspect the requiring of transmission quality, have very big different, therefore, in the group packet procedures, the packet of different business and frame will pool different light burst packets (OBP) respectively.
Particularly, under the triggering of conditions such as restriction of maximum burst bag binding time or the restriction of maximum burst packet length, packet in the formation or frame will pool light burst packets as shown in Figure 4.This light burst packets is made up of the some groupings or the frame that are linked in sequence.Meanwhile, the resource reservation module will generate electric control bag (ECP), carry previous offset time with respect to the light burst packets and send, and realize the unidirectional resource reservation of path downstream with this.Electric control bag herein comprises contents such as source address, destination address, QoS grade, wavelength ID, corresponding light burst packets length, packet/frame quantity, offset time as shown in Figure 4.Because photon sphere is finished the transmission of data with the form of light bag, the three-dimensional constraining of light signal with time, space, frequency simultaneously, so the transmission course of light bag has just existed conflict and has not had two kinds of situations of conflict.When the transmission of light bag does not have conflict, it will utilize the full light path of being realized by resource reservation by the electric control bag that sends in advance directly to be forwarded to destination node.When light wraps in the generation conflict of a certain node place, because the unique of conflict may be exactly when upstream node has business at this node transparent transmission, this node is carrying out the transmission of light burst packets with this wavelength, therefore can be by the buffer memory of fibre delay line, hysteresis a period of time sends again, avoids the packet loss problem that causes because of conflict.In addition, the burst packets that this node also can come the upstream enters local queue and requeues in local reception after opto-electronic conversion, and then is forwarded to downstream node after process such as converging.This mode is called light, electric L2 cache mechanism.Packet or the frame whole possibility transmission courses in ultrahigh speed elasticity burst ring as shown in Figure 5.Wherein node i, j, k represent three kinds of situations that may exist respectively.Full optical processing pattern (pattern 1 among Fig. 5) when the node i place conflicts for not having, node j place is light caching process pattern or claims level cache tupe (pattern 2 among Fig. 5) that node k place is electric caching process pattern or claims L2 cache tupe (mode 3 among Fig. 5).
The resource reservation mechanism of ultrahigh speed elasticity burst ring is to put forward on the basis of ODD agreement and PJET agreement, and inventor general's called after has the ODD agreement of priority mechanism, i.e. PODD agreement.
In this resource reservation mechanism, set the offset time of a minimum on the one hand, it is only relevant with the setup time of TWS.Owing to do not adopt any optical switching matrix and wavelength shifter in the network, and each node is all at first sent incident optical signal (extracting the later light signal of control wavelength) into one section fibre delay line (FDL1) wraps in this node place with the counteracting electric control processing delay, therefore, under the condition that guarantees normal transmission, there is a minimum value in the time deviation (offset time) that sends electric control bag and light burst packets, it is only relevant setup time with the TWS of receiving terminal (no matter being to be received or to be received in destination node at intermediate node), and and the forwarding jumping figure between the destination node of source irrelevant.
On the other hand, in order to realize professional differentiated services and the QoS of all kinds of business to be guaranteed, introduced variable offset time setting, but offset time will remain unchanged in the whole transport process of data once setting.。But obviously, this variable offset time must be more than or equal to above-mentioned minimum offset time.Adopt different offset time settings herein, its reason and effect are because extra offset time can improve the probability of success of electric control bag resource reservation and then reduce the losing probability of light burst packets as the PJET agreement.
Since unidirectional resource reservation mechanism make exist in the transmission course of light burst packets on ring conflict may, therefore, Fig. 6, Fig. 7 and Fig. 8 have provided respectively not to be had conflict and PODD agreement schematic diagram under the conflict condition is arranged.
Under no conflict condition (Fig. 6), the processing delay δ of each node to the electric control bag offset in the introducing of FDL1, thereby the time deviation between electric control bag and the light burst packets is remained on the duration T (being offset time).And can know that by the PJET agreement increase of T can improve the success rate of resource reservation.Therefore, when realizing the QoS mechanism of ultrahigh speed elasticity burst ring, can give bigger offset time T of business of high priority, thereby guarantee the service quality that this is professional.
When electric control wraps in when conflict occurring in the process of resource reservation, if the FDL2 free time of this node, then PODD enters level cache (light buffer memory) reservation pattern, shown in node among Fig. 72.Because the introducing of FDL2 has increased the offset time between electric control bag and the light burst packets, for guaranteeing time relationship strict between them, electric control bag time identical with FDL2 length that will lag behind equally sends again.
In addition, if FDL2 is also occupied when conflict produces, the PODD agreement will enter L2 cache (electric buffer memory) pattern, as shown in Figure 8.Because this pattern received and be converted to the signal of telecommunication with the light burst packets at the intermediate node place form is ranked again and encapsulated, so node S can regard two as independently respectively by the light burst packets transmission course of node S to node 2 and node 2 to node D fully to the data transmission procedure of node D.
More than be used to realize that to of the present invention the elastic burst ring system of ultrahigh speed transfer of data and data transmission method thereof have been described in detail.For one of ordinary skill in the art, any conspicuous change of under the prerequisite that does not deviate from connotation of the present invention it being done all will constitute to infringement of patent right of the present invention, with corresponding legal responsibilities.
Claims (10)
1. a ultrahigh speed elasticity burst ring system comprises electronic shell and photon sphere, it is characterized in that:
Described electronic shell comprises Topology Discovery, protection recovery, data dispatch, flow control, electric territory QoS module and photon sphere control module, light territory QoS module, light territory conflict-solving module, described photon sphere have based on the burst transfer mode the optical signal transmission module, between described electronic shell and the photon sphere by converging/separate the aggregation scheme swap data;
Described electronic shell is connected the signal of telecommunication from its upper strata, and described photon sphere is connected the high density partial wave multiplex (MUX) light signal from its lower floor.
2. a ultrahigh speed elasticity burst link point is used to constitute ultrahigh speed elasticity burst ring system as claimed in claim 1, comprises wavelength multiplexing/demultiplexing equipment, fibre delay line, fast tunable wave length beam splitting device in this node, it is characterized in that:
Between described wavelength multiplexing/demultiplexing equipment, light signal on the control wavelength is sent into the electric control bag and is generated and processing module after opto-electronic conversion, the light signal of other wavelength is sent into described fast tunable wave length beam splitting device behind first fibre delay line, described wave length beam splitting device is divided into two bundles with the multiple wavelength optical signal of incident, a branch of direct output, a branch of in addition light modulation equipment that sends to, a part enters electric buffer memory after opto-electronic conversion, export one by one through electric domain scheduling mechanism, another part is directly exported through second fibre delay line;
Extraneous packet or frame are dispatched by electric domain scheduling mechanism, change into light signal after opto-electronic conversion, externally export by aggregation scheme.
3. the node of ultrahigh speed elasticity burst ring as claimed in claim 2 is characterized in that:
Described node is when the enterprising industry of a certain wavelength is engaged in uploading, if there is express traffic to forward through this wavelength from upstream node, light burst packets in this business is by tuning reception, scheduling by photosphere enters described second fibre delay line, continues to be forwarded to downstream node on this wavelength after delayed again.
4. the node of ultrahigh speed elasticity burst ring as claimed in claim 2 is characterized in that:
When described node clashes, directly after opto-electronic conversion, entered by non-flash of light preceding an earthquake burst packets of tuning reception at the light signal receiver side in the electric buffer memory of described node and requeue, assemble, send.
5. one kind is utilized ultrahigh speed elasticity burst ring system as claimed in claim 1 to carry out the method for transfer of data, it is characterized in that:
(1) when packet or frame arrive ring and go up node, at first enters corresponding formation queuing;
(2) carry out opto-electronic conversion by aggregation scheme, go forward side by side into photon sphere;
(3) select corresponding loop and wavelength by the scheduling of photon sphere;
(4) transmit by ultrahigh speed elasticity burst ring;
(5) in the destination, by the tuning receiving optical signals of the scheduling of photon sphere;
(6) carry out opto-electronic conversion, and enter electronic shell by separating aggregation scheme;
(7) enter corresponding formation queuing;
(8) select output port externally to export through the scheduling of electronic shell.
6. the method for utilizing ultrahigh speed elasticity burst ring system to carry out transfer of data as claimed in claim 5 is characterized in that:
Packet in the transmit queue or frame pool the light burst packets and transmit, and simultaneously, the resource reservation module generates corresponding electric control bag, carry previous offset time with respect to described smooth burst packets and send.
7. the method for utilizing ultrahigh speed elasticity burst ring system to carry out transfer of data as claimed in claim 6 is characterized in that:
Described offset time can dynamically arrange, and relevant with the priority forward of business.
8. the method for utilizing ultrahigh speed elasticity burst ring system to carry out transfer of data as claimed in claim 7 is characterized in that:
Described offset time remains unchanged in the whole transport process of data once setting.
9. the method for utilizing ultrahigh speed elasticity burst ring system to carry out transfer of data as claimed in claim 5 is characterized in that:
When the light burst packets produced conflict at a certain node place, this node in local reception, entered described smooth burst packets local queue and requeues after opto-electronic conversion, be forwarded to downstream node then.
10. the method for utilizing ultrahigh speed elasticity burst ring system to carry out transfer of data as claimed in claim 5 is characterized in that:
When the light burst packets produced conflict at a certain node place, this node after a period of time continued described smooth outburst packet delay to be forwarded to downstream node on former wavelength by the buffer memory of fibre delay line again.
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101882976A (en) * | 2010-07-14 | 2010-11-10 | 北京邮电大学 | Reliable data packet transmission method |
| CN105530142A (en) * | 2015-12-11 | 2016-04-27 | 深圳市新岸通讯技术有限公司 | Data transmission delay optimization algorithm for network management system of CWDM optical network |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101882976A (en) * | 2010-07-14 | 2010-11-10 | 北京邮电大学 | Reliable data packet transmission method |
| CN105530142A (en) * | 2015-12-11 | 2016-04-27 | 深圳市新岸通讯技术有限公司 | Data transmission delay optimization algorithm for network management system of CWDM optical network |
| CN105530142B (en) * | 2015-12-11 | 2019-10-22 | 东莞小耳朵智能科技有限公司 | It is a kind of for CWDM optical-fiber network network management system to the optimization method of data transfer delay |
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