Title :
Cooperative PTS for PAPR reduction in MIMO-OFDM
Author :
Wang, Lingfeng ; Liu, Jiangchuan
Author_Institution :
Sch. of Inf. Sci. & Eng., Shandong Univ., Jinan, China
Abstract :
Partial transmit sequence (PTS) provides attractive peak-to-average power ratio (PAPR) reduction performance in OFDM or MIMO-OFDM. However, it leads to prohibitively large computational complexity. A cooperative PTS (co-PTS) is proposed. In co-PTS, alternate optimisation and spatial subblock circular permutation are employed. Simulation results show that co-PTS can reduce computational complexity dramatically and achieve better PAPR reduction performance compared to ordinary PTS.
Keywords :
MIMO systems; OFDM modulation; computational complexity; optimisation; MIMO-OFDM; PAPR reduction performance; co-PTS; computational complexity; cooperative PTS; optimisation; partial transmit sequence; peak-to-average power ratio reduction; spatial subblock circular permutation;
Journal_Title :
Electronics Letters
DOI :
10.1049/el.2010.3099