Design of channel-estimate-dependent space-time block codes

被引：16
|
作者：
Jöngren, G [1 ]
Skoglund, M [1 ]
Ottersten, B [1 ]
机构：
[1] Royal Inst Technol, Dept Signals Sensors & Syst, SE-10044 Stockholm, Sweden
来源：
IEEE TRANSACTIONS ON COMMUNICATIONS | 2004年 / 52卷 / 07期
关键词：
code design; feedback; modulation; multiple input multiple-output (MIMO); space-time codes; transmit diversity; wireless communication;
D O I：
10.1109/TCOMM.2004.831356
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：
So far, the assumption of no channel knowledge at the transmitter has generally been inherent in the design of space-time codes. This paper, on the other hand, assumes that quantized channel information obtained from a feedback link is available at the transmitter and investigates how such channel information can be incorporated into the design of unstructured space-time block codes. Efficient codes are found by means of a gradient search over a continuous alphabet. Simulation results for an uncorrelated Rayleigh fading scenario using two and four transmit antennas and one receive antenna show the benefits of the code designs.
引用
收藏
页码：1191 / 1203
页数：13
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