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Peak-to-average power reduction using partial transmit sequences: a suboptimal approach based on dual layered phase sequencing

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3 Author(s)
Wong Sai Ho ; Inst. for Infocomm Res., Singapore, Singapore ; Madhukumar, A.S. ; Chin, F.

A high peak-to-average power ratio (PAPR) is a major shortcoming in multicarrier systems, as it causes nonlinearity in the transmitter, degrading the performance of the system significantly. Partial transmit sequences (PTS) is one of the best methods in reducing PAPR, in which the information-bearing subcarriers are divided into M disjoint subblocks, each controlled by a phase rotation factor which brings PAPR down. Though PAPR reduction by PTS is more effective with more subblocks, there is a corresponding exponential increase in complexity. In this paper, a novel implementation of PTS is presented, in which a dual-layered approach is employed to reduce the complexity.

Published in:

Broadcasting, IEEE Transactions on  (Volume:49 ,  Issue: 2 )

Date of Publication:

June 2003

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