重庆邮电学院学报（自然科学版）2005，Vol.17Issue(2)：184-187,4.
低轨卫星通信系统中的一种呼叫接入控制策略
A call admission control algorithm for LEO systems
摘要
Abstract
Because of the frequent arrivals of new and handover call requests and limited channel resource in Low Earth Orbit (LEO) satellite system, it's necessary to adopt a call admission control (CAC) algorithm to avoid the call blockings, especially the handover call dropping probability. In this paper, a PGC scheme, which means part guard channels algorithm is introduced on the basis of traditional guard channel algorithm and keeps the better blocking probability and dropping probability on balance. Properties of the two algorithms are studied in some important aspects. Finally, computer simulation results are given and analyzed.关键词
呼叫接入控制/阻塞率/掉话率/信道利用率Key words
call admission control/blocking probability/dropping probability/channels utilization分类
信息技术与安全科学引用本文复制引用
张立巍,朱立东,吴诗其..低轨卫星通信系统中的一种呼叫接入控制策略[J].重庆邮电学院学报（自然科学版）,2005,17(2):184-187,4.基金项目
国家自然科学基金资助项目(60372013) （60372013）
