Title :
PAPR Reduction of OQAM-OFDM Signals Using Segmental PTS Scheme With Low Complexity
Author :
Chen Ye ; Zijun Li ; Tao Jiang ; Chunxing Ni ; Qi Qi
Author_Institution :
Dept. of Electron. & Inf. Eng., Huazhong Univ. of Sci. & Technol., Wuhan, China
Abstract :
In this paper, a novel segmental partial transmit sequence (S-PTS) scheme is proposed for the peak-to-average power ratio (PAPR) reduction in offset quadrature amplitude modulation based orthogonal frequency-division multiplexing (OQAM-OFDM) systems. The key idea of the S-PTS scheme is to divide the overlapped OQAM-OFDM signals into a number of segments, and then some disjoint subblocks are divided and multiplied with different phase rotation factors in each segment. Compared with the conventional PTS scheme directly employed in OQAM-OFDM sytems, the S-PTS scheme could offer better PAPR reduction with lower computational complexity.
Keywords :
OFDM modulation; computational complexity; quadrature amplitude modulation; signal processing; OQAM-OFDM signals; PAPR reduction; S-PTS scheme; computational complexity; offset quadrature amplitude modulation systems; orthogonal frequency-division multiplexing systems; peak-to-average power ratio reduction; phase rotation factors; segmental partial transmit sequence scheme; Computational complexity; Interference; Partial transmit sequences; Peak to average power ratio; Time-frequency analysis; OQAM-OFDM; partial transmit sequence (PTS); peak-to-average power ratio (PAPR);
Journal_Title :
Broadcasting, IEEE Transactions on
DOI :
10.1109/TBC.2013.2282732
