A New Approach for Fast Generalized Complex Sphere Decoding Algorithm in MIMO Systems

被引：1
|
作者：
Liu, Chao [1 ]
机构：
[1] Hangzhou Dianzi Univ, Sch Commun Engn, Hangzhou 310018, Peoples R China
来源：
2007 INTERNATIONAL CONFERENCE ON WIRELESS COMMUNICATIONS, NETWORKING AND MOBILE COMPUTING, VOLS 1-15 | 2007年
关键词：
Generalized Complex Sphere Decoder (GCSD); MIMO system; wireless communications;
D O I：
10.1109/WICOM.2007.92
中图分类号：
TP39 [计算机的应用];
学科分类号：
081203 ; 0835 ;
摘要：
A fast generalized complex sphere decoder (GCSD) is proposed in this paper. This GCSD can be used to solve the under-determined MIMO systems. Moreover, it can handle not only the QAM and PSK constellations, but also the arbitrary complex constellations. The basic idea is to partition the transmitted signal vector into two sub-vectors. After some transformations, we can use a search scheme which is similar to sphere decoding and a conventional complex sphere decoder to solve these two sub-vectors respectively. Simulation results show that the complexity of our GSCD is significantly lower than the exhaustive search scheme on the under-determined part of the transmitted signal vectors.
引用
收藏
页码：342 / 345
页数：4
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