Peak-to-average power ratio reduction based on cyclic iteration partial transmit sequence

Authors:
Jing Gao;Jinkuan Wang;Bin Wang
Affiliations:
School of Information Science & Engineering, Northeastern University, Shenyang, China;School of Information Science & Engineering, Northeastern University, Shenyang, China;School of Information Science & Engineering, Northeastern University, Shenyang, China
Venue:
IITA'09 Proceedings of the 3rd international conference on Intelligent information technology application
Year:
2009

Citing 4
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Abstract

Partial transmit sequence (PTS) is an efficient algorithm to solve the problem of high peak-to-average power ratio (PAPR) in orthogonal frequency division multiplexing (OFDM), but its exhaustive search of phase factors results in high computational complexity. A PTS algorithm based on cyclic iteration (C-IPTS) is proposed to solve this problem. In the proposed algorithm, the phase factor achieved by the previous iteration is set as the initial phase factor of the current search, thus the search is more close to the optimal phase factor after repetition, as a result, the PAPR performance is eliminated effectively. Moreover, the effect of initial phase factor is decreased significantly. Simulation shows that C-IPTS algorithm can achive good PAPR reduction with low computational complexity.