Low complexity MIMO detection algorithm

被引:0
作者
Jelovcan, Igor [1 ]
Javornik, Tomaz [1 ]
机构
[1] Jozef Stefan Inst, Jamova 39, Ljubljana, Slovenia
来源
ELEKTROTEHNISKI VESTNIK-ELECTROCHEMICAL REVIEW | 2007年 / 74卷 / 04期
关键词
MIMO; ML; ZF; ZFML; sphere detection;
D O I
暂无
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
The multi antenna systems offer a much larger channel capacity than the traditional single antenna systems. The price which has to be extra paid is detection complexity. In this paper we examine performance of the low complexity algorithm called zero forcing-maximum likelihood (ZFML) [5]. We find this algorithm appropriate for MIMO (Multiple Input Multiple Output) systems using more receive than transmit antennas. For the 2x4 VBLAST (Vertical Bell-Labs Layered Space-Time) MIMO system almost maximum likelihood (ML) performance is achieved. To overcome large performance gaps in NxN MIMO systems, some modifications of the algorithm are needed. In future, we intend to upgrade this algorithm to allow for iterative decoding in turbo MIMO systems.
引用
收藏
页码:236 / 240
页数:5
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