Diversity, interference cancellation and spatial multiplexing in MIMO mobile WiMAX systems

被引：0
|
作者：
Biglieri, E. [1 ]
Goldsmith, A. [2 ]
Muquet, B. [3 ]
Sari, H. [3 ,4 ]
机构：
[1] Univ Pompeu Fabra, Passeig Circumval Lacio 8, E-08003 Barcelona, Spain
[2] Stanford Univ, Wireless Syst Lab, San Francisco, CA 94105 USA
[3] Sequans Commun, Bat Citictr,19 Le Parvis, F-92073 Paris, France
[4] Supelec Plateau De Moulon, 1-3 Rue Joliot Curie, F-91190 Gif Sur Yvette, France
来源：
2007 IEEE MOBILE WIMAX SYMPOSIUM | 2007年
关键词：
D O I：
暂无
中图分类号：
TP3 [计算技术、计算机技术];
学科分类号：
0812 ;
摘要：
Multiple input multiple output (MIMO) techniques are an essential part of the IEEE 802.16e - 2005 specifications, which form the basis of mobile WiMAX systems. In this paper, we first discuss the tradeoffs between diversity, interference cancellation and spatial multiplexing in MIMO systems, and we compare optimum combining (OC), maximum-ratio combining (MRC) and interference cancellation for different numbers of receive antennas. Then, we focus on the two mandatory MIMO profiles in the IEEE specifications (Alamouti's STC and the 2x2 spatial multiplexing scheme) and compare them when the first is combined with MRC at the receiver. The analysis obtained using the ITU pedestrian B channel in ideal conditions indicates that the two schemes lead to similar performance when they are operated at the same spectral efficiency.
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页码：74 / +
页数：2
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