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Decomposed selected mapping for peak-to-average power ratio reduction in MIMO-OFDM systems

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3 Author(s)
Jing Gao ; Sch. of Inf. Sci. & Eng., Northeastern Univ., Shenyang ; Jinkuan Wang ; Zhibin Xie

To reduce the peak-to-average power ratio (PAPR) of multiple input multiple output orthogonal frequency division multiplexing (MIMO-OFDM), a decomposed individual selected mapping (D-ISLM) algorithm is proposed in this paper. The real and imaginary part of the transmitted signals are treated separately, thereby, a sufficiently large number of alternative transmit signals are provided, and the significant PAPR reduction performance can be obtained with the same computational complexity as conventional SLM. Moreover, a decomposed concurrent selected mapping (D-CSLM) is proposed to reduce the side information furtherlly. Simulations results demonstrate that the proposed algorithm outperforms the conventional SLM algorithm in MIMO-OFDM systems.

Published in:

Signal Processing, 2008. ICSP 2008. 9th International Conference on

Date of Conference:

26-29 Oct. 2008