多状态马尔可夫信道的时延分析

周志强; 叶通; 李东

doi:10.11959/j.issn.1000-0801.2016242

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多状态马尔可夫信道的时延分析

研究与开发 | 更新时间：2024-06-05

- 多状态马尔可夫信道的时延分析
- Delay analysis of multi-state Markov channels
- 电信科学 2016年32卷第9期页码：22-28
- 作者机构：
- 作者简介：
  
  [ "周志强(1993-)，男，上海交通大学硕士生，主要研究方向为无线局域网、排队论。" ]
  [ "叶通(1976-)，男，上海交通大学副教授，主要研究方向为宽带交换网络结构、网络算法设计和性能分析、光网络系统。" ]
  [ "李东(1948-)，男，上海交通大学致远讲席教授，IEEE Fellow， HKIE Fellow，1993-2010年于香港中文大学任讲席教授，主要研究方向为带宽交换理论、网络性能分析、无线通信网络。" ]
- 基金信息：
- DOI：10.11959/j.issn.1000-0801.2016242
  中图分类号： TN919
- 网络出版日期：2016-09，
  
  纸质出版日期：2016-09-15
- 稿件说明：
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周志强, 叶通, 李东. 多状态马尔可夫信道的时延分析[J]. 电信科学, 2016,32(9):22-28.

Zhiqiang ZHOU, Tong YE, Dong LI. Delay analysis of multi-state Markov channels[J]. Telecommunications science, 2016, 32(9): 22-28.
周志强, 叶通, 李东. 多状态马尔可夫信道的时延分析[J]. 电信科学, 2016,32(9):22-28. DOI： 10.11959/j.issn.1000-0801.2016242.

Zhiqiang ZHOU, Tong YE, Dong LI. Delay analysis of multi-state Markov channels[J]. Telecommunications science, 2016, 32(9): 22-28. DOI： 10.11959/j.issn.1000-0801.2016242.

摘要

随着无线通信技术的迅速发展，无线通信为移动用户提供了极大的灵活性和便利性。然而，由于多径效应引起的慢/快衰落，无线衰落信道的传输速率是不稳定的，这种不稳定性影响着信道的传输时延和通信质量。在研究中，无线衰落信道也被称为马尔可夫信道，信道状态的切换由马尔可夫链控制。针对一个三状态的马尔可夫信道进行分析。结合数据分组的到达与服务，整个系统被建模为一个M/MMSP/1排队系统。通过定义条件开始服务概率以及条件平均时延，结合状态转移矩阵，给出数据分组的平均服务时间和平均等待时间的解析解。最后在极限情况下对数据分组平均等待时间进行讨论，给出了影响时延的因素。

Abstract

With the rapid development of wireless technology

the wireless communication offers great flexibility and convenience to mobile users.However

due to the slow/fast fading caused by multipath effect

the transmission rate of wireless fading channel is unstable

which will affect the transmission delay and communication quality.In literature

the wireless fading channel is also called Markov channel.The transition of channel state is controlled by a Markov chain.A detailed analysis was given for a three-state Markov channel.The whole system was modeled as an M/MMSP/1 queuing system considering the arrivals and services of packets.By defining conditional start service probability and conditional expected delay

the analytical expressions of mean service time and mean waiting time of packets were given using the state transition matrix.At last

by discussing the mean waiting time in limiting cases

the factors that affect the delay were given.

关键词

Keywords

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