Comparing decoding algorithms for multi-layer space-time block codes

被引：6
|
作者：
Mohammad, M [1 ]
Al-Ghadhban, S [1 ]
Woemer, B [1 ]
Tranter, W [1 ]
机构：
[1] Virginia Polytech Inst & State Univ, Mobile & Portable Radio Res Grp, Blacksburg, VA 24061 USA
来源：
PROCEEDINGS OF THE IEEE SOUTHEASTCON 2004: ENGINEERING CONNECTS | 2004年
关键词：
multi-layer system; space-time block codes; sphere decoding; ordering scheme; interference cancellation;
D O I：
10.1109/SECON.2004.1287909
中图分类号：
TP18 [人工智能理论];
学科分类号：
081104 ; 0812 ; 0835 ; 1405 ;
摘要：
In this paper we consider a multiple input multiple output multi-group space-time coding system that is a combination of V-BLAST and space-time block codes. Decoding order is an important issue for serial group interference cancellation (SGIC) algorithm. Different ordering schemes for SGIC are compared. While layers in SGIC suffer from unequal receive diversity, parallel group interference cancellation (PGIC) has the potential to achieve full receive diversity for all the layers. Performance of both the algorithms are analyzed and compared Finally we show that the optimal performance of layered block codes could be achieved by sphere decoding (SD) which approaches the maximum likelihood detection performance with lower complexity. Keywords: Multi-layer system, space-time block codes, sphere decoding, ordering scheme, interference cancellation.
引用
收藏
页码：147 / 152
页数：6
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