Towards a better diversity-multiplexing tradeoff in MIMO systems

被引：0

作者：

Dai, L ^{[1
]}

Sfar, S ^{[1
]}

Letaief, KB ^{[1
]}

机构：

[1] Hong Kong Univ Sci & Technol, Ctr Wireless Informat Technol, Hong Kong, Hong Kong, Peoples R China

来源：

ICC 2005: IEEE INTERNATIONAL CONFERENCE ON COMMUNICATIONS, VOLS 1-5 | 2005年

关键词：

group detection; MIMO systems; space-time block coding; layered space-time; group layered space-time; quasi-orthogonal group space-time; diversity-multiplexing tradeoff;

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：

Multiple-Input Multiple-Output (MIMO) systems can provide two kinds of gain: diversity gain and multiplexing gain. Most existing MIMO schemes, including space-time coding and layered space-time, aim at maximizing either of them. Group transmission and detection is a good way to get a tradeoff between these two gains. In this paper, the diversity-multiplexing tradeoff functions of 3 schemes based on group transmission and detection, Quasi-Orthogonal Group Space-Time (QoGST), Group Layered Space-Time (GLST) and Layered space-time block codes (LSTBC), are provided and a vivid comparison among them demonstrates that QoGST achieves the best diversity-multiplexing tradeoff. GLST also gets significant gains over LSTBC. Simulation results will validate the analysis and show that QoGST can achieve at least 3 dB gain over GLST and 12 dB over LSTBC at a FER of 10(-3), for instance.

引用

页码：2422 / 2426

页数：5

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