Adaptive modulation for space-frequency block coded OFDM systems

被引：14
|
作者：
Torabi, Mohammad [1 ]
机构：
[1] Ecole Polytech, Dept Genie Elect, Montreal, PQ H3T 1J4, Canada
来源：
AEU-INTERNATIONAL JOURNAL OF ELECTRONICS AND COMMUNICATIONS | 2008年 / 62卷 / 07期
关键词：
OFDM; adaptive modulation; MIMO; space-frequency block coding;
D O I：
10.1016/j.aeue.2007.07.008
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 growing popularity of both multiple-input multiple-output (MIMO) and orthogonal frequency division multiplexing (OFDM) systems has created the need for adaptive modulation to integrate temporal, spatial and spectral components together. In this article, an overview of some adaptive modulation schemes for OFDNI is presented. Then a new scheme consisting of a combination of adaptive modulation, OFDNI, high-order space-frequency block codes (SFBC), and antenna selection is presented. The proposed scheme exploits the benefits of space-frequency block codes, OFDNI, adaptive modulation and antenna selection to provide high-quality transmission for broadband wireless communications. The spectral efficiency advantage of the proposed system is examined. It is shown that antenna selection with adaptive modulation can greatly improve the performance of the conventional SFBC-OFDM systems. (c) 2007 Elsevier GmbH. All rights reserved.
引用
收藏
页码：521 / 533
页数：13
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