Constructions of Gaussian Integer Sequences with Zero Correlation Zone

Xiaoyu CHEN  Deming KONG  Chengqian XU  Kai LIU  

IEICE TRANSACTIONS on Fundamentals of Electronics, Communications and Computer Sciences   Vol.E99-A   No.6   pp.1260-1263
Publication Date: 2016/06/01
Online ISSN: 1745-1337
DOI: 10.1587/transfun.E99.A.1260
Type of Manuscript: LETTER
Category: Coding Theory
quasi-synchronous code-division multiple-access (QS-CDMA),  zero correlation zone (ZCZ),  Gaussian integer sequence,  

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Based on a perfect Gaussian integer sequence, shift and combination operations are performed to construct Gaussian integer sequences with zero correlation zone (ZCZ). The resultant sequence sets are optimal or almost optimal with respect to the Tang-Fan-Matsufuji bound. Furthermore, the ZCZ Gaussian integer sequence sets can be provided for quasi-synchronous code-division multiple-access systems to increase transmission data rate and reduce interference.