一种自组织时分多址甚高频数据链中的暴露终端问题的解决方案

 阐述了S-TDMA系统中暴露终端问题的形成,给出了解决这一问题的一种方案。并提出一种新的自组织时分多址数据链网络性能分析方法——概率周期分析法。通过引出系统状态熵概念,将时隙状态的停留时间和状态转移概率同时引入分析模型中,给出了一种以时隙的处于成功传送状态的状态真值占系统状态熵之比作为评价信道吞吐量的新方法。仿真结果表明,采用了这一方案后系统性能将大大改善。

SOLUTION OF EXPOSED TERMINAL PROBLEM IN SELF-ORGANIZED TDMA VHF DATALINK

The formation of exposed terminal problems is expanded in this paper. A new method called Probability Cycle Analysis is also proposed. By defining system state entropy, duration of slots state and states transition probabilities are stated, and an evaluation method on channel throughput adopting the true value ratio of safe state to total states of the system is presented. An effective scheme is proposed and the simulation shows that the performance of S TDMA system adopting this scheme is prominently improved.