基于线性分散码的放大前传协作分集研究

Journal of Systems Engineering and Electronics ›› 2009, Vol. 31 ›› Issue (5): 1026-1029.

基于线性分散码的放大前传协作分集研究

高明, 葛建华, 高洋

西安电子科技大学, 综合业务网国家重点实验室, 陕西, 西安, 710071

收稿日期:2008-01-29 修回日期:2008-07-07 出版日期:2009-05-20 发布日期:2010-01-03
作者简介:高明(1979- ),男,博士研究生,主要研究方向为空时码技术,协作分集技术.E-mail:mgao@mail.xindian.edu.cn
基金资助:
国家高技术研究发展计划“863”项目(2006AA01Z270);高等学校学科创新引智计划(B08038)资助课题

Research on amplify-and-forward cooperation based on liner dispersion codes

GAO Ming, GE Jian-hua, GAO Yang

National Key Lab. of Integrated Service Networks, Xidian Univ., Xi'an 710071, China

Received:2008-01-29 Revised:2008-07-07 Online:2009-05-20 Published:2010-01-03

摘要/Abstract

摘要： 线性分散码空时协作分集系统与传统的正交分组空时码协作分集系统相比,前者的性能在高速率情况下要好于后者.提出了两种基于线性分散码的放大前传协作分集方案.两种方案的主要区别在于中继端的噪声是在线性分散码编码之前还是之后引入的.首先通过理论推导证明了两种方案的误码率性能相同,然后对两种方案的特点进行了分析,指出一种方案较另外一种方案相比,具有较低的中继端和协议复杂度,但是在协作的信息传输第一阶段的速率较低.最后通过蒙特·卡罗仿真验证了理论上的推导.

Abstract: Compared with the orthogonal space-time block codes(OSTBC) cooperation scheme,the liner dispersion codes cooperation system improves the performance of the system under high rate conditions.Two kinds of amplify-and-forward cooperation schemes based on liner dispersion codes is proposed.The main difference between these two schemes is when the noise of the relays is added to the liner dispersion codes,pre-and post-coding.Firstly,these two schemes have the same BER performance are proved.Secondly,the characteristics of the two schemes are analyzed.Compared one scheme with the other,one has a lower complexity of the relays and cooperative protocol,but has a lower rate in the first phase of the cooperation.Finally,the obtained results are verified through Monte Carlo simulation.

中图分类号:

TN913

高明, 葛建华, 高洋. 基于线性分散码的放大前传协作分集研究[J]. Journal of Systems Engineering and Electronics, 2009, 31(5): 1026-1029.

GAO Ming, GE Jian-hua, GAO Yang. Research on amplify-and-forward cooperation based on liner dispersion codes[J]. Journal of Systems Engineering and Electronics, 2009, 31(5): 1026-1029.