[1]俞菲,杨绿溪.一种新型的针对频率选择性MIMO信道的空时分层检测算法[J].东南大学学报(自然科学版),2004,34(6):720-723.[doi:10.3969/j.issn.1001-0505.2004.06.002]
 Yu Fei,Yang Lüxi.New detection algorithm for layered space-time receiver in frequency selective fading MIMO channels[J].Journal of Southeast University (Natural Science Edition),2004,34(6):720-723.[doi:10.3969/j.issn.1001-0505.2004.06.002]
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一种新型的针对频率选择性MIMO信道的空时分层检测算法()
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《东南大学学报(自然科学版)》[ISSN:1001-0505/CN:32-1178/N]

卷:
34
期数:
2004年第6期
页码:
720-723
栏目:
信息与通信工程
出版日期:
2004-11-20

文章信息/Info

Title:
New detection algorithm for layered space-time receiver in frequency selective fading MIMO channels
作者:
俞菲 杨绿溪
东南大学无线电工程系, 南京 210096
Author(s):
Yu Fei Yang Lüxi
Department of Radio Engineering, Southeast University, Nanjing 210096, China
关键词:
多输入多输出通信系统 频率选择性衰落信道 空时分层结构 最大似然检测
Keywords:
multiple input and multiple output communication systems frequency-selective fading channels layered space-time structure maximum-likelihood detection
分类号:
TN911.23
DOI:
10.3969/j.issn.1001-0505.2004.06.002
摘要:
在FS-BLAST算法的基础上,提出了一种改进的适用于频率选择性多输入多输出(MIMO)信道的接收方案,该方案采用部分最大似然分层检测,其主要思想是在空时分层检测的基础上,部分地引入最大似然(ML)检测,从而有效地克服FS-BLAST类算法由于误差扩散所导致的系统性能下降的缺点.该方法的特点是仅对接收信号的一部分使用最大似然检测,因此,计算量并没有太大的增加.另外,该方法可以自由地选取进行最大似然检测的信号维数,因此可根据实际系统特点在计算复杂度和误码率性能间选取最优折衷.
Abstract:
Using partly maximum-likelihood(ML)layered receiver, an improved algorithm is given in frequency selective fading multiple input and multiple output(MIMO)channels. The main idea of the algorithm is to use ML detection algorithm partly in layered space-time architecture, thereforce the shortcoming of an FS-BLAST system, degradation of system performance due to the error propagation, can be overcome. Since the new algorithm only uses ML detection partly, it can still maintain low implementation complexity. In addition, because the dimension of the signals detected by ML criterion can be chosen freely, it is achievable to find a tradeoff between implementation complexity and system performance.

参考文献/References:

[1] Telatar I E.Capacity of multi-antenna Gaussian channel [J].European Transactions on Telecommunications, 1999,10(6):585-595.
[2] Foschini G J.Layered space-time architecture for wireless communication in a fading environment using multi-element antennas [J].Bell Labs Technical Journal, 1996,1(2):41-59.
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[4] Lozano A,Papadias C.Layered space-time receivers for frequency-selective wireless channels [J]. IEEE Transactions on Communications, 2002,50(1):65-73.
[5] Benjebbour A,Murata H,Yoshida S.Performance of iterative successive detection algorithm with space-time transmission [A].In:Meidaneds Renven,ed.Proc IEEE Vehicular Technology Conference[C].Greece:Motorola Israel,2001.1287-1291.
[6] Shen C,Zhuang H R,Dai L,et al.Detection algorithm improving V-BLAST performance over propagation[J].Electronic Letters, 2003,39(13):1007-1008.
[7] Bhargave A,Figueiredo D,Eltoft T,et al.A detection algorithm for the V-BLAST system[A].In:Ahlgren Bengt,ed. IEEE Global Telecommunications Conference [C].USA:IEEE Communications Society Internet TC,2001.494-498.

备注/Memo

备注/Memo:
基金项目: 国家自然科学基金资助项目(60272046)、江苏省自然科学基金资助项目(BK2002051)、国家高技术研究发展计划(863计划)资助项目(2002AA123031).
作者简介: 俞菲(1980—),女,博士生; 杨绿溪(联系人), 男,博士,教授,博士生导师,lxyang@seu.edu.cn.
更新日期/Last Update: 2004-11-20