移动卫星通信中基于马尔可夫链的两状态信道模型研究

doi:10.3969/j.issn.1671-1122.2015.04.009

信息网络安全 ›› 2015, Vol. 15 ›› Issue (4): 50-55.doi: 10.3969/j.issn.1671-1122.2015.04.009

移动卫星通信中基于马尔可夫链的两状态信道模型研究

吴海龙(), 赵旦峰, 廖希

哈尔滨工程大学信息与通信工程学院,黑龙江哈尔滨 150001

收稿日期:2015-03-03 出版日期:2015-04-10 发布日期:2018-07-16
作者简介:
作者简介：吴海龙（1989-）,男,黑龙江,硕士研究生,主要研究方向：卫星通信、LMS信道建模;赵旦峰（1961-）,男,湖南,教授,博士,主要研究方向：卫星通信;廖希（1988-）,女,四川,博士研究生,主要研究方向：卫星移动通信技术。
基金资助:
国家自然科学基金[61371099]

The Study of Two-state Channel Model Based on Markov Chain in the Mobile Satellite Communication

Hai-long WU(), Dan-feng ZHAO, Xi LIAO

College of Information and Communication Engineering, Harbin Engineering University, Harbin Heilongjiang 150001, China

Received:2015-03-03 Online:2015-04-10 Published:2018-07-16

摘要/Abstract

摘要：

文章基于马尔可夫链提出两状态陆地移动卫星通信信道模型,该模型状态之间的转移被描述为马尔可夫（Markov）过程,且每状态内接收信号包络的概率密度函数服从不同参数集的Loo分布。同时对这一过程进行理论上的数学建模与仿真分析,得到包络的一阶、二阶统计特性,并将其与同样环境下的实测数据相应的统计特性进行对比。仿真结果表明,在多种环境下,基于马尔可夫（Markov）链的两状态陆地移动卫星通信信道模型的统计特性与实测数据的统计特性非常接近,这证明了所建立的信道模型能够模拟实际环境中的卫星移动通信信道,为以后移动通信技术的评估以及系统的规划搭建有效的平台,同时也具有很广泛的适用性。

关键词: 移动卫星通信, 两状态信道模型, 马尔可夫链, 衰落统计特性

Abstract:

This paper puts forward a two-state land mobile satellite channel model on the basis of Markov chain. Transfer between the two states is described as Markov process, and probability density function of receiving signal envelope in each state follows the Loo distribution. Statistical characteristic of first order and second order is attained via doing mathematic modeling and simulation analysis of the process, and are compared with that of the measured data in the same environment. The simulation result shows that in various environments, the statistical characteristics of the two-state land mobile satellite communication channel model based on Markov chain are close with that of the measured data, which proves that the constructed channel model can be used to simulate the satellite mobile communication channel in practical environment. It not only provides an effective platform for the evaluation of mobile communication technology and the planning of communication system in future, but also has a wide applicability.

Key words: mobile satellite communication, two-state channel model, Markov chain, fading statistics

中图分类号:

TP309

吴海龙, 赵旦峰, 廖希. 移动卫星通信中基于马尔可夫链的两状态信道模型研究[J]. 信息网络安全, 2015, 15(4): 50-55.

Hai-long WU, Dan-feng ZHAO, Xi LIAO. The Study of Two-state Channel Model Based on Markov Chain in the Mobile Satellite Communication[J]. Netinfo Security, 2015, 15(4): 50-55.

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移动卫星通信中基于马尔可夫链的两状态信道模型研究

The Study of Two-state Channel Model Based on Markov Chain in the Mobile Satellite Communication

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