通信学报2016，Vol.37Issue(10)：25-32,8.DOI:10.11959/j.issn.1000-436x.2016192
基于多目标决策的LEO卫星网络多业务路由算法
LEO multi-service routing algorithm based on multi-objective decision making
摘要
Abstract
In low earth orbit(LEO) satellite networks, in view of the unbalanced link resource, it's difficult to meet dif-ferentiated quality of service(QoS) requirements and easily lead to reduce the efficiency of the whole network. A routing algorithm based on multi-objective decision making was proposed which defined LEO satellite network transmission ser-vice as the delay sensitive, sensitive bandwidth and reliability sensitive three categories. It used the eigenvector method to calculate service weights, and used the consistency ratio to determine whether it can be accepted. Based on the multi-objective decision making theory, it combined with the actual state of satellite network nodes and links and the spe-cific requirements of the business, calculating the path that meets the QoS requirements of the service, so as to realize the LEO satellite network multi objective dynamic routing optimization. Established simulation platform based on the irid-ium network system simulated network delay, the uncertain characteristics like the residual bandwidth and packet error rate, route planning for the randomly generated three classes of business. The simulation results show that, the algorithm not only satisfies the QoS constrain while balancing the traffic load of the satellite link effectively, but also improves the performance on the throughput.关键词
LEO卫星网络/QoS路由算法/多目标决策Key words
LEO satellite network/QoS routing algorithm/multi-objective decision making分类
信息技术与安全科学引用本文复制引用
杨力,孙晶,潘成胜,邹启杰..基于多目标决策的LEO卫星网络多业务路由算法[J].通信学报,2016,37(10):25-32,8.基金项目
国家自然科学基金资助项目（No.61301151, No.91338104） Foundation Item:The National Natural Science Foundation of China (No.61301151, No.91338104) （No.61301151, No.91338104）
