On the Shift Value Set of Cyclic Shifted Sequences for PAPR Reduction in OFDM Systems

Orthogonal frequency division multiplexing (OFDM) signals have high peak-to-average power ratio (PAPR), which causes distortion when OFDM signal passes through a nonlinear high power amplifier. A partial transmit sequence (PTS) scheme is one of the typical PAPR reduction methods. A cyclic shifted se...

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Bibliographic Details
Published in:IEEE transactions on broadcasting 2016-06, Vol.62 (2), p.496-500
Main Author: Kim, Kee-Hoon
Format: Article
Language:English
Subjects:
Broadcasting
Cascading style sheets
Correlation
Criteria
Cyclic shifted sequences (CSS)
Distortion
Evolution
Frequency-domain analysis
Nonlinearity
Orthogonal Frequency Division Multiplexing
orthogonal frequency division multiplexing (OFDM)
partial transmit sequence (PTS)
Partial transmit sequences
Peak to average power ratio
peak-to-average power ratio (PAPR)
Reduction
Simulation
Time-domain analysis
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Summary:Orthogonal frequency division multiplexing (OFDM) signals have high peak-to-average power ratio (PAPR), which causes distortion when OFDM signal passes through a nonlinear high power amplifier. A partial transmit sequence (PTS) scheme is one of the typical PAPR reduction methods. A cyclic shifted sequences (CSSs) scheme is evolved from the PTS scheme to improve the PAPR reduction performance, where OFDM signal subsequences are cyclically shifted and combined to generate alternative OFDM signal sequences. The shift value (SV) sets in the CSS scheme should be carefully selected because those are closely related to the PAPR reduction performance of the CSS scheme. In this letter, we propose some criteria to select the good SV sets and verify its validness through simulations.
ISSN:0018-9316
1557-9611
DOI:10.1109/TBC.2016.2529292