Title :
A Low Complexity PAPR Reduction Technique for STBC MIMO-OFDM System
Author :
Gao, Jing ; Wang, Jinkuan ; Wang, Yun
Author_Institution :
Dept. of Inf. Sci. & Eng., Northeastern Univ., Shenyang
Abstract :
Selective mapping algorithm is proposed to reduce the peak-to-average power ration (PAPR) in MIMO-OFDM system. 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.
Keywords :
MIMO communication; OFDM modulation; block codes; communication complexity; space-time codes; STBC MIMO-OFDM system; computational complexity; concurrent SLM algorithm; conjugate symbols; low complexity PAPR reduction technique; orthogonal frequency division multiplexing; orthogonal space-time block code; peak-to-average power ration; selective mapping algorithm; side information; Computational complexity; Computational efficiency; Information science; MIMO; OFDM modulation; Partial transmit sequences; Peak to average power ratio; Power engineering and energy; Signal processing algorithms; Transmitting antennas;
Conference_Titel :
Wireless Communications, Networking and Mobile Computing, 2007. WiCom 2007. International Conference on
Conference_Location :
Shanghai
Print_ISBN :
978-1-4244-1311-9
DOI :
10.1109/WICOM.2007.34
