面向多业务承载的OBS网络信令协议设计
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摘要
考虑光突发交换(OBS)网络具有部分波长转换能力和多业务承载需求,结合并行调度方案,提出了基本型快速分段信令协议(SFP),并对其进行了多业务能力扩展,另外,还提出了一种面向多业务承载的OBS SFP,即增强型多业务分段快速协议(SFP-MS)。仿真结果表明,与普通后向资源预留协议(BRP)相比,基本型SFP的丢包率和端到端时延较低;而增强型SFP-MS除了能维持同步业务周期性外,还能降低节点处理突发控制包(BCP)的数量,提高同步数据突发包(DB)有效数据填充率,增强多业务承载能力。
Considering optical burst switching(OBS) network with wavelength conversion and multi-service traffic load demand, this paper proposed a new segmented and fast control signaling protocol(SFP) based on the parallel scheduling idea, and enhanced the multi-service carrier capability of the SFP. In addition, the paper revised an OBS SFP enabling multi-service carrier, which is called SFP for multi-service(SFP-MS). Shown by simulation results, compared to back resource reservation protocol(BRP), SFP can reduce the delay and packet loss probability. During carrying synchronous business cyclical, SFP-MS can effectively reduce the number of processing burst control package(BCP) at nodes. Besides, SFP-MS can also increase the payload probability of data burst packet(DB), and enhance the capacity of multi-service traffic load.
Considering optical burst switching(OBS) network with wavelength conversion and multi-service traffic load demand, this paper proposed a new segmented and fast control signaling protocol(SFP) based on the parallel scheduling idea, and enhanced the multi-service carrier capability of the SFP. In addition, the paper revised an OBS SFP enabling multi-service carrier, which is called SFP for multi-service(SFP-MS). Shown by simulation results, compared to back resource reservation protocol(BRP), SFP can reduce the delay and packet loss probability. During carrying synchronous business cyclical, SFP-MS can effectively reduce the number of processing burst control package(BCP) at nodes. Besides, SFP-MS can also increase the payload probability of data burst packet(DB), and enhance the capacity of multi-service traffic load.
引文
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[13]SHIRAIWA M,MIYAZAWA T,FURUKAWA H,et al.Explicit wavelength resource reallocation to ensure critical communication lines in emergency situations[C]//2016 Optoelectronics and Communications Conference(OECC2016),Jul.3-7,2016,Niigata,Japan.Piscataway:IEEE,2016.
[2]刘真.OBS网络中信令协议的研究[D].重庆:重庆邮电大学,2011.
[3]盖美庆,赵尚弘,李勇军,等.OBS网络数据信道调度算法性能比较与分析[J].光通信技术,2011,35(8):43-46.
[4]PRIYA A V,KUMAR P S.Wavelength division multiplexing for optical burst switched networks[J].Int.J.of Control Theory and Appl.,2016,9(9):4145-4155.
[5]朱国军,朱娜.一种基于混合门限的快速前向资源预留OBS组装算法[J].光通信技术,2007,31(3):30-33.
[6]晁瑞兰,王文国,吴国栋,等.OBS中基于抢占调度的资源释放策略研究[J].光通信技术,2007,31(10):27-29.
[7]VOKKARANE V M.Intermediate-node-initiation(INI):A generalized signaling framework for optical burst-switched networks[J].Optical Switching&Networking,2007,4(1):20-32.
[8]LEE Y.Dynamic burst length controlling algorithm-based loss differentiation in OBS networks through shared FDL buffers[J].Photonic Network Communications,2016,31(1):36-47.
[9]KHAN F Z.Analysis of Optical Burst Switched Networks with Edge-Core Joint Nodes[D].Vienna:Thesis of Vienna Univ.of Technol,2012.
[10]MUTSVANGWA A,NLEYA B,GOMBA M,et al.Evaluation of end-to-end latency for segmented bursts in OBS networks[C]//2016 International Conference on Advances in Computing and Communication Engineering(ICACCE2016),Nov.28-29,2016,Durban,South Africa.Piscataway:IEEE,2016.
[11]BAKOPOULOS P,TOKAS K,SPATHARAKIS C,et al.Slotted optical datacenter network with sub-wavelength resource allocation[C]//2017IEEE Photonics Society Summer Topical Meeting Series(SUM2017),Jul.10-12,2017,San Juan,Puerto Rico.Piscataway:IEEE,2017.
[12]KHAN F Z,HAYAT M F,HO覵YNSKI T,et al.Towards dynamic wavelength grouping for Qo S in optical burst-switched networks[C]//2017International Conference on Telecommunications and Signal Processing(TSP2017),Jul.5-7,2017,Barcelona,Spain.Piscataway:IEEE,2017.
[13]SHIRAIWA M,MIYAZAWA T,FURUKAWA H,et al.Explicit wavelength resource reallocation to ensure critical communication lines in emergency situations[C]//2016 Optoelectronics and Communications Conference(OECC2016),Jul.3-7,2016,Niigata,Japan.Piscataway:IEEE,2016.