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Partial Transmit Sequence Scheme with Phase Factor Selection Algorithm in OFDM Systems

Soobum CHO, Sang Kyu PARK

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Summary :

A partial transmit sequence with a clipping (PTS-Clipping) method can reduce considerably high peak-to-average power ratio (PAPR) of orthogonal frequency division multiplexing (OFDM) signal. However, exhaustive searching operations are needed in order to find optimal phase factors. Signal distortions also occur because the clipping is a nonlinear operation. In this letter, we propose a new partial transmit sequence (PTS) scheme using a phase factor selection algorithm with preset thresholds. The proposed scheme achieves considerable savings for determining the optimum phase factors without the signal distortions.

Publication
IEICE TRANSACTIONS on Fundamentals Vol.E95-A No.6 pp.1099-1102
Publication Date
2012/06/01
Publicized
Online ISSN
1745-1337
DOI
10.1587/transfun.E95.A.1099
Type of Manuscript
LETTER
Category
Communication Theory and Signals

Authors

Keyword

OFDM,  PAPR,  PTS,  Clipping