Title :
Peak-to-average power ratio in MIMO-OFDM systems using selective mapping
Author :
Lee, Yung-Lyul ; You, Young-Hwan ; Jeon, Won-Gi ; Paik, Jong-Ho ; Song, Hyoung-Kyu
Author_Institution :
Dept. of Internet Eng., Sejong Univ., Seoul, South Korea
Abstract :
This letter evaluates the peak-to-average power ratio (PAR) performance in a space-time block coded (STBC) multi-input multi-output orthogonal frequency-division multiplexing (MIMO-OFDM) system using the selective mapping (SLM) approach. The investigated SLM-based MIMO-OFDM system selects the transmitted sequence with the lowest average PAR over all transmit antennas and retrieves the side information very accurately at the expense of only 0.5-dB degradation of the PAR, which can improve the overall detection performance of the MIMO-OFDM system with erroneous side information, compared to the individual SLM approach.
Keywords :
MIMO systems; OFDM modulation; block codes; space-time codes; transmitting antennas; MIMO-OFDM system; detection performance improvement; erroneous side information retrieval; multiple input multiple output; orthogonal frequency division multiplexing; peak-to-average power ratio; selective mapping; space-time block code; transmit antenna; Bit error rate; Degradation; Digital multimedia broadcasting; Distortion; Frequency division multiplexing; Information retrieval; OFDM; Partial transmit sequences; Peak to average power ratio; Transmitting antennas;
Journal_Title :
Communications Letters, IEEE
DOI :
10.1109/LCOMM.2003.821329
