An Adaptive MIMO-OFDMA Relay System

被引：6
|
作者：
Munoz, Daniel [1 ]
Xie, Baile [1 ]
Minn, Hlaing [1 ]
机构：
[1] Univ Texas Dallas, Dept Elect Engn, Richardson, TX 75083 USA
来源：
IEEE WIRELESS COMMUNICATIONS LETTERS | 2012年 / 1卷 / 05期
关键词：
Relay; time-varying; adaptive transmission; SELECTION;
D O I：
10.1109/WCL.2012.071612.120357
中图分类号：
TP [自动化技术、计算机技术];
学科分类号：
0812 ;
摘要：
We consider multi-input multi-output (MIMO) antennas relay systems under time-varying channels and propose a joint relay, antenna, subband, and MIMO transmission mode adaptation scheme which enables antenna selection to exploit channel state information (CSI) at the beginning of transmission and switch to space-frequency block coding (SFBC) when CSI becomes outdated. Moreover, we propose temporal power and bit loading for the cascaded source-relay-destination link with/without inter-hop power allocation to further enhance the system performance.
引用
收藏
页码：496 / 499
页数：4
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