一种新的卫星/地面综合通信系统的切换信道分配策略及性能分析  

New Channel Allocation Strategy of Handoff in Integrated Satellite/Terrestrial Communication System

作　　者：钱宗峰[1] 吕智勇[2] 张更新[3] 

机构地区：[1]解放军理工大学通信工程学院研究生2队 [2]总参谋部第 61研究所 [3]解放军理工大学通信工程学院卫星通信系

出　　处：《军事通信技术》2005年第S1期19-23,共5页Journal of Military Communications Technology

摘　　要：LEO卫星移动通信系统和地面移动通信系统的综合,可以有效地扩大通信系统的覆盖区域,提高系统的容量,降低服务成本,对卫星移动通信系统与地面移动通信系统的一体化建设具有重要意义。介绍了LEO移动卫星系统与地面蜂窝系统间的切换信道分配技术,研究了一种新的适用于卫星/地面综合移动通信系统的切换信道分配策略,在此基础上建立理论模型,对综合系统的性能进行了分析计算。最后对该策略进行仿真,并与独立系统的性能进行了比较,结果表明新的切换信道分配策略可以在保持卫星通信系统性能的同时,有效提高地面系统的通信性能。Integrated LEO satellite/terrestrial mobile communications system can provide wide coverage as well as big capacity.It's very important to study the integrated satellite/terrestrial communications system. This paper introduced the handoff channel allocation strategy,which is the key technology in the integrated satellite/terrestrial system. First a new handoff channel allocation strategy in integrated satellite/terrestrial mobile communication system was studied. Then its performance with that of independent system was compared. The simulation indicates that the handoff strategy can improve the performance of terrestrial system without increasing the traffic blocking probability in the satellite system.

关 键 词：卫星/地面综合移动通信系统 切换 溢出 信道分配 

分 类 号：TN927.2[电子电信—通信与信息系统]