论文部分内容阅读
本文提出了一种基于半马尔可夫模型的VHF信道访问协议分析方法 .在建立空地数据链信道访问的状态分析模型的基础上 ,通过将状态平均停留时间和状态转移概率同时引入模型中 ,给出了信道处于安全状态概率和系统忙用户数的表达 ,为信道访问协议的性能分析和评价提供了一种新的方法 .这种方法不需限制系统参数分布为指数分布 ,更接近实际情况 ,将其用于VHF空地数据链系统的仿真结果表明 ,该方法是行之有效的
In this paper, we propose a semi-Markov model based VHF channel access protocol analysis method.On the basis of establishing the state analysis model of spatial data link access, we introduce the state average dwell time and state transition probability into the model simultaneously, Out of the channel in the safe state probability and the number of users busy system expression for the channel access protocol performance analysis and evaluation provides a new method.This method does not need to limit the system parameter distribution for the exponential distribution closer to the actual situation, The simulation result of using it in VHF open space data link system shows that this method is effective