一种适用于卫星光交换网络的汇聚算法  

Burst Assembly Algorithm for Satellite Optical Switching Networks

作　　者：王雨琦 周钠[1] 陈特 白博[1] 辛宁[1] WANG Yuqi;ZHOU Na;CHEN Te;BAI Bo;XIN Ning(Institute of Telecommunication Satellite,china Academy of Space Technology,Beijing 100094,china)

机构地区：[1]中国空间技术研究院通信卫星事业部,北京100094

出　　处：《移动通信》2018年第11期30-36,43,共8页Mobile Communications

基　　金：国家自然科学基金面上项目(61775237)

摘　　要：为了提高天基光突发交换网络的性能和服务质量,提出了一种适用于卫星光交换网络的汇聚算法。该算法在传统算法的基础上,通过对不同时间优先级业务进行自适应汇聚时间门限调整,有效降低高时间优先级业务的汇聚时延,并且保证了在汇聚过程中不引入额外的信令开销。仿真结果表明,与传统的基于混合门限的汇聚算法相比,基于QoS自适应的星载光突发交换汇聚算法在不同场景可以减少2.30%～9.06%的高时间优先级业务汇聚时延。In order to improve the performance and quality of service （QoS） of space-based optical burst switching networks, a burst assembly algorithm for satellite optical switching networks is proposed in this paper. Based on the conventional algorithm, the assembly delay for the high-time-priority service is effectively reduced by adaptively adjusting the assembly time threshold for the services with different time priorities. In addition, the additional signaling overhead is not involved. Simulation results show that, compared with the conventional assembly algorithm based on hybrid threshold, the assembly delay of the high-time-priority service can be reduced by 2.30%- 9.06% in different scenarios for the proposed algorithm.

关 键 词：星载光突发交换 QoS自适应 汇聚算法 汇聚时延 

分 类 号：TN929.5[电子电信—通信与信息系统]