Cooperative space-time coding for wireless networks

被引：89
|
作者：
Stefanov, A [1 ]
Erkip, E [1 ]
机构：
[1] Polytech Univ, Dept Elect & Comp Engn, Brooklyn, NY 11201 USA
来源：
IEEE TRANSACTIONS ON COMMUNICATIONS | 2005年 / 53卷 / 11期
基金：
美国国家科学基金会;
关键词：
cooperative diversity; diversity methods; error-correction coding; fading channels; multiple-input multiple-output (MIMO) systems;
D O I：
10.1109/TCOMM.2005.858641
中图分类号：
TM [电工技术]; TN [电子技术、通信技术];
学科分类号：
0808 ; 0809 ;
摘要：
We consider a cooperative transmission scheme in which the collaborating nodes may have multiple antennas. We present the performance analysis and design of space-time codes that are capable of achieving the full diversity provided by user cooperation. Our codes use the principle of overlays in time and space, and ensure that cooperation takes place as often as possible. We show how cooperation among nodes with different numbers of antennas can be accomplished, and how the quality of the interuser link affects the cooperative performance. We illustrate that space-time cooperation can greatly reduce the error rates of all the nodes involved, even for poor interuser channel quality.
引用
收藏
页码：1804 / 1809
页数：6
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