电子学报 ›› 2006, Vol. 34 ›› Issue (10): 1868-1871.

• 论文 • 上一篇    下一篇

信息选择天线技术提高多天线系统信道容量的研究

杨玉丽, 焦秉立   

  1. 北京大学信息科学技术学院,北京 100871
  • 收稿日期:2005-08-08 修回日期:2006-06-06 出版日期:2006-10-25 发布日期:2006-10-25

Capacity Gain by Information-Guided Channel-Hopping Scheme in Cycling Transmission System

YANG Yu-li, JIAO Bing-li   

  1. School of Electronics Engineering & Computer Science,Peking University,Beijing 100871,China
  • Received:2005-08-08 Revised:2006-06-06 Online:2006-10-25 Published:2006-10-25

摘要: 在多天线系统中,将一部分信源信息映射于发射天线的选择,可以有效提高系统的传输效率.本文介绍了这种以信息选择发射天线的传输模式,并从信息理论的角度对其信道容量进行了分析、得到了解析表达式.理论分析的数值结果表明,与相同天线结构的随机选择发射天线系统相比,信息选择发射天线系统能够达到更高的信道容量.

关键词: 信道容量, 多天线系统, 随机选择天线, 信息选择天线

Abstract: This paper dealt with the capacity behavior of a new transmission technique for the multi-antenna system,which was proposed based on the fact that multiple independent channels as well as the points in modulation constellation can be mapped by the input of information data.An analytic expression of the channel capacity for the new transmission technique was derived and the numerical results proved that compared to the traditional random transmit-antenna selection technique with the same antenna structure,the new transmission technique can achieve more channel capacity gain.

Key words: capacity, ergodic capacity, multiple antenna system, transmit-antenna selection

中图分类号: