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本文提出一种新的R—ALOHA卫星分组通信系统,通过对该系统性能的全面分析,建立系统马尔可夫模型。在模型中不但考虑卫星信道传播延迟的影响,而且着重考虑由于用户随机选取不同时隙所引起信息处理时间的变化,对系统产生的影响。对具有多维马尔可夫链的分析采用平衡点分析技术,推导出系统吞吐量和平均信息延迟。该系统设计更为灵活,更具有一般性,在设计系统时使于根据不同的要求调整吞吐量和信息延迟或考虑信息优先等级等。
This paper presents a new R-ALOHA satellite packet communication system, through a comprehensive analysis of the system performance, the establishment of the system Markov model. In the model, not only the influence of satellite channel propagation delay but also the impact on the system due to the change of information processing time caused by users randomly selecting different time slots are considered. The analysis of multi-dimensional Markov chains using equilibrium point analysis techniques, derived system throughput and average information delay. The design of the system is more flexible and more general. When designing the system, the system adjusts the throughput and information delay according to different requirements or considers the priority of information.