摘要
结合卫星网路的拓扑结构和运行规律,提出了一种通信量和拓扑自适应的路由算法,可以增大系统的流量。由于LEO系统的动态特性,已经建立的呼叫连接可能由于切换失败而中断原来的通信,因此,文章在研究路由算法时考虑为切换呼叫动态地预留信道,以降低切换失败概率。仿真结果表明,此策略可以改善系统的性能。
The traffic and topology adaptive routing algorithm conbined with topology structure and operating rules is proposed in this paper, which can increase the throughput of the system.Also, due to the dynamic topology of LEO system, the connection may be interrupted because of handover failure. In order to minimize the handover failure probability, dynamic channel reservation strategies are also taken into account at the same time.The simulation results show that the system performance can be improved as a result of dynamic channel reservation for handover calls.
出处
《中国空间科学技术》
EI
CSCD
北大核心
2005年第4期47-53,共7页
Chinese Space Science and Technology
基金
国家自然科学基金(批准号60372013)资助项目
