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On the Phase Sequence Set of SLM Scheme for Crest Factor Reduction in OFDM System  

Lim Dae-Woon (서울대학교 전기.컴퓨터공학부)
Heo Seok-Joong (서울대학교 전기.컴퓨터공학부)
No Jong-Seon (서울대학교 전기.컴퓨터공학부)
Chung Ha-Bong (홍익대학교 전기전자공학부)
Publication Information
The Journal of Korean Institute of Communications and Information Sciences / v.31, no.9C, 2006 , pp. 889-896 More about this Journal
Abstract
The crest factor distribution of orthogonal frequency division multiplexing (OFDM) symbol sequences is evaluated and it is shown that OFDM symbol sequences with a short period are expected to have a high crest factor. The crest factor relationship between two input symbol sequences, Hamming distance D apart is also derived. Using these two results, we propose two criteria for a phase sequence set of the selected mapping (SLM) scheme and suggest the rows of the cyclic Hadamard matrix constructed from an m-sequence as the near optimal phase sequence set of the SLM scheme.
Keywords
Crest factor; Cyclic Hadamard Matrix; Orthogonal Frequency Division Multiplexing (OFDM); Phase Sequence Set; Selected Mapping (SLM);
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