电讯技术2016，Vol.56Issue(9)：982-989,8.DOI:10.3969/j.issn.1001-893x.2016.09.006
一种新的GEO/LEO双层星座路由算法
A New GEO/LEO Double-layered Constellation Routing Algorithm
摘要
Abstract
According to the complex communication environment for multiple satellite constellations and the special application background,a new routing algorithm———priority-based and on-board distributed rou-ting algorithm( PDRA) is proposed. A new hierarchical management strategy is proposed in PDRA algo-rithm. The packets’ priorities are set according to the importance of information and the routing calculation and updating of the routing is set at the beginning of the topology snapshot. A new congestion avoidance strategy is used in the information transfer process. Theoretical analysis and simulation results show that the PDRA algorithm has superior performance than other typical satellite constellation network routing algo-rithms as follows:it can take advantage the characters of GEO/LEO double-layered satellite constellation, has the lower data packet losing rate and higher throughput,and can avoid link congestion and guarantee real-time and reliable transmission of important information.关键词
卫星网络/GEO/LEO双层星座/路由算法/优先级/拥塞回避Key words
satellite network/GEO/LEO double-layered satellite constellation network/routing algorithm/priority-based/congestion avoidance分类
信息技术与安全科学引用本文复制引用
刘炯,陶波,李志军,张琳..一种新的GEO/LEO双层星座路由算法[J].电讯技术,2016,56(9):982-989,8.基金项目
全军军事学研究生课题资助项目(2011JY002-253,2015JY175) Foundation Item:The Graduate Program of Military Science Project(2011JY002-253,2015JY175) （2011JY002-253,2015JY175）
