IEICE Transactions on Fundamentals of Electronics, Communications and Computer Sciences
Online ISSN : 1745-1337
Print ISSN : 0916-8508
Special Section on Signal Design and Its Applications in Communications
Construction of Near-Complementary Sequences with Low PMEPR for Peak Power Control in OFDM
Gaofei WUYuqing ZHANGZilong WANG
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2012 Volume E95.A Issue 11 Pages 1881-1887

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Abstract

Multicarrier communications including orthogonal frequ-ency-division multiplexing (OFDM) is a technique which has been adopted for various wireless applications. However, a major drawback to the widespread acceptance of OFDM is the high peak-to-mean envelope power ratio (PMEPR) of uncoded OFDM signals. Finding methods for construction of sequences with low PMEPR is an active research area. In this paper, by employing some new shortened and extended Golay complementary pairs as the seeds, we enlarge the family size of near-complementary sequences given by Yu and Gong. We also show that the new set of sequences we obtained is just a reversal of the original set. Numerical results show that the enlarged family size is almost twice of the original one. Besides, the Hamming distances of the binary near-complementary sequences are also analyzed.

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© 2012 The Institute of Electronics, Information and Communication Engineers
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