中国物理B ›› 2008, Vol. 17 ›› Issue (12): 4451-4457.doi: 10.1088/1674-1056/17/12/020

• GENERAL • 上一篇    下一篇

Statistical-mechanical analysis of multiuser channel capacity with imperfect channel state information

汪辉松, 曾贵华   

  1. The State Key Laboratory on Fiber-Optical Local Area Networks and Advanced Optical Communication Systems, Electronic Engineering Department, Shanghai Jiaotong University, Shanghai 200030, China
  • 收稿日期:2006-09-20 修回日期:2007-09-24 出版日期:2008-12-20 发布日期:2008-12-20
  • 基金资助:
    Project supported by the National Nature Science Foundation of China (Grant Nos 60773085 and 60801051).

Statistical-mechanical analysis of multiuser channel capacity with imperfect channel state information

Wang Hui-Song (汪辉松), Zeng Gui-Hua (曾贵华)   

  1. The State Key Laboratory on Fiber-Optical Local Area Networks and Advanced Optical Communication Systems, Electronic Engineering Department, Shanghai Jiaotong University, Shanghai 200030, China
  • Received:2006-09-20 Revised:2007-09-24 Online:2008-12-20 Published:2008-12-20
  • Supported by:
    Project supported by the National Nature Science Foundation of China (Grant Nos 60773085 and 60801051).

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摘要： In this paper, the effect of imperfect channel state information at the receiver, which is caused by noise and other interference, on the multi-access channel capacity is analysed through a statistical-mechanical approach. Replica analyses focus on analytically studying how the minimum mean square error (MMSE) channel estimation error appears in a multiuser channel capacity formula. And the relevant mathematical expressions are derived. At the same time, numerical simulation results are demonstrated to validate the Replica analyses. The simulation results show how the system parameters, such as channel estimation error, system load and signal-to-noise ratio, affect the channel capacity.

Abstract: In this paper, the effect of imperfect channel state information at the receiver, which is caused by noise and other interference, on the multi-access channel capacity is analysed through a statistical-mechanical approach. Replica analyses focus on analytically studying how the minimum mean square error (MMSE) channel estimation error appears in a multiuser channel capacity formula. And the relevant mathematical expressions are derived. At the same time, numerical simulation results are demonstrated to validate the Replica analyses. The simulation results show how the system parameters, such as channel estimation error, system load and signal-to-noise ratio, affect the channel capacity.

Key words: statistical mechanics, channel capacity, minimum mean square error channel estimation, code division multiple access(CDMA)

中图分类号:  (Telecommunications: signal transmission and processing; communication satellites)

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