A new concurrent SLM algorithm for STBC MIMO-OFDM systems

被引：0
|
作者：
Gao Jing [1 ]
Wang Jinkuan [1 ]
Xie Zhibin [1 ]
机构：
[1] Northeastern Univ, Sch Informat Sci & Engn, Shenyang 110004, Peoples R China
来源：
2007 INTERNATIONAL SYMPOSIUM ON INTELLIGENT SIGNAL PROCESSING AND COMMUNICATION SYSTEMS, VOLS 1 AND 2 | 2007年
关键词：
MIMO (multiple input multiple output); OFDM (orthogonal frequency-division multiplexing); PAPR (peak-to-average power ratio); SLM (selective mapping); STBC (space-time block coded);
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：
One main disadvantage of MIMO-OFDM is that the signals transmitted on different antennas might exhibit a prohibitively large peak-to-average power ratio (PAPR). In this paper, a low complexity concurrent selective mapping algorithm is proposed to solve the problem. A new criterion of minimum maximum (minmax) is proposed, by which the proposed algorithm achieves much better PAPR performance. Moreover, it is proved that the conjugate symbols on two antennas have the same PAPR property with orthogonal space-time block coded (STBC). By using the characteristic, the computational complexity cost and the side information (SI) is significantly reduced compared with the concurrent SLM algorithm. Simulation results demonstrate that the performance of the proposed algorithm outperforms the conventional concurrent SLM algorithm.
引用
收藏
页码：160 / 163
页数：4
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