北京邮电大学学报

  • EI核心期刊

北京邮电大学学报 ›› 2005, Vol. 28 ›› Issue (5): 85-88.doi: 10.13190/jbupt.200505.85.liuzh

• 研究报告 • 上一篇    下一篇

瑞利衰落信道有限状态Markov模型的研究

刘真,杨大成   

  1. 北京邮电大学 电信工程学院, 北京 100876
  • 出版日期:2005-10-28 发布日期:2005-10-28

Research on FiniteState Markov Model for Rayleigh Fading Channels

LIU Zhen,YANG Dacheng   

  1. School of Telecommunication Engineering, Beijing University of Posts and Telecommunications, Beijing 100876, China
  • Online:2005-10-28 Published:2005-10-28

摘要:

提出了一种能够准确描述瑞利衰落特性的有限状态Markov模型. 通过对平稳概率的分析,给出了Markov模型中信噪比门限和状态总数的选取方法;通过对电平通过率等瑞利衰落特性参数的计算,得到了Markov模型各个状态的转移概率和错误概率. 仿真结果验证了Markov模型描述瑞利衰落信道的准确性与有效性.

关键词: 瑞利衰落, Markov模型, 信噪比门限, 转移概率, 错误概率

Abstract:

A finitestate Markov channel model representing Rayleigh fading channels was introduced. A methodology of selecting signaltonoise thresholds and the total number of states were discussed based on the analysis of the steadystate probability. And the transition probabilities between states and error probabilities were calculated with the given fading characteristic parameters such as level crossing rate. The validity and accuracy of the model are confirmed by the simulation.

Key words: Rayleigh fading, Markov model, signalnoise ratio threshold, transition probability, error probability

中图分类号: