A New Class of Polyphase Sequence Sets with Optimal Zero-Correlation Zones

Hideyuki TORII  Makoto NAKAMURA  Naoki SUEHIRO  

Publication
IEICE TRANSACTIONS on Fundamentals of Electronics, Communications and Computer Sciences   Vol.E88-A   No.7   pp.1987-1994
Publication Date: 2005/07/01
Online ISSN: 
DOI: 10.1093/ietfec/e88-a.7.1987
Print ISSN: 0916-8508
Type of Manuscript: PAPER
Category: Spread Spectrum Technologies and Applications
Keyword: 
ZCZ sequence sets,  polyphase sequences,  spreading sequences,  spread spectrum communication,  approximately synchronized CDMA,  

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Summary: 
This paper proposes a new class of polyphase ZCZ (zero-correlation zone) sequence sets which satisfy a mathematical upper bound. The proposed ZCZ sequence sets are obtained from DFT matrices and unitary matrices. In addition, this paper discusses the cross-correlation property between different ZCZ sequence sets which belong to the proposed class.