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16-QAM Sequences with Zero Correlation Zone from the Known Quadriphase ZCZ Sequences

Fanxin ZENG, Zhenyu ZHANG

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Summary :

Based on the known quadriphase zero correlation zone (ZCZ) sequences ZCZ4(N,M,T), four families of 16-QAM sequences with ZCZ are presented, where the term "QAM sequences" means the sequences over the quadrature amplitude modulation (QAM) constellation. When the quadriphase ZCZ sequences employed by this letter arrive at the theoretical bound on the ZCZ sequences, and are of the even family size M or the odd width T of ZCZ, two of the resulting four 16-QAM sequence sets satisfy the bound referred to above. The proposed sequences can be potentially applied to communication systems using 16-QAM constellation as spreading sequences so that the multiple access interference (MAI) and multi-path interference (MPI) are removed synchronously.

Publication
IEICE TRANSACTIONS on Fundamentals Vol.E94-A No.3 pp.1023-1028
Publication Date
2011/03/01
Publicized
Online ISSN
1745-1337
DOI
10.1587/transfun.E94.A.1023
Type of Manuscript
LETTER
Category
Information Theory

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