English

应用科学学报

• 信号与信息处理 • 上一篇    下一篇

相关Nakagami衰落信道下SC/MRC系统性能分析

李涛1, 王保云2，3, 田峰3   

  1. 1.南京邮电大学 通信与信息工程学院，江苏 南京 210003；
    2.东南大学 移动通信国家重点实验室，江苏 南京 210096；
    3.南京邮电大学 自动化学院，江苏 南京 210003

  • 收稿日期:2007-09-17 修回日期:2008-03-24 出版日期:2008-09-27 发布日期:2008-09-27
  • 通信作者: 李涛

Performance Analysis of SC/MRC Scheme over Correlated Nakagami Fading Channel

LI Tao1, WANG Bao-yun2，3, TIAN Feng3   

  1. 1. College of Communication and Information Engineering, Nanjing University of Posts and Telecommunications, Nanjing 210003, China;
    2. National Mobile Communication Research Laboratory, Southeast University, Nanjing 210096, China;
    3. College of Automation, Nanjing University of Posts and Telecommunications, Nanjing 210003, China

  • Received:2007-09-17 Revised:2008-03-24 Online:2008-09-27 Published:2008-09-27
  • Contact: LI Tao

被引次数

5

摘要：

多输入多输出（multiple-input multiple-output,MIMO）系统的发射端天线选择是从多根天线中选择其中信道状况最好的一根用于发射信号，可减少所需要的射频链的个数，从而降低系统的复杂度及实现成本.该文研究发射端进行天线选择、接收端采用最大比合并接收的系统在相关Nakagami衰落信道下的性能，推导出输出信噪比的分布密度函数，进而给出了精确的误比特率（BER）公式，该表达式仅包含非常简单的函数，易于计算.

关键词:

多输入多输出, 发射端天线选择, 最大比合并接收, 相关Nakagami衰落信道, 误比特率

Abstract:

In a MIMO system, the transmitter antenna selection technique, which selects one antenna for transmitting, can reduce the number of required RF chains and alleviate system complexity and costs. In this paper, we analyze performance of the system that uses maximal ratio combining(MRC) at the receiver and operates over correlated Nakagami fading channels. The probability distribution density function of the output SNR is derived, and an accurate expression of bit error rate (BER) is obtained, which only includes ordinary function.

Key words: MIMO, transmitter antenna selection, receiver-maximal-ratio-combining, correlated Nakagami fading channels, BER

中图分类号: