Generation of Sets of Sequences Suitable for Multicode Transmission in Quasi-Synchronous CDMA Systems

Masato SAITO  Takaya YAMAZATO  Hiraku OKADA  Masaaki KATAYAMA  Akira OGAWA  

IEICE TRANSACTIONS on Communications   Vol.E84-B    No.3    pp.576-580
Publication Date: 2001/03/01
Online ISSN: 
Print ISSN: 0916-8516
Type of Manuscript: Special Section LETTER (Special Issue on Innovative Mobile Communication Technologies at the Dawn of the 21st Century)
quasi-synchronous CDMA,  Gold code,  orthogonal Gold code,  multicode transmission,  

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In this letter, we present a method to generate sets of sequences suitable for multicode transmission in quasi-synchronous (QS) CDMA systems. We focus on Gold code but extension to orthogonal Gold code is straightforward. We show that by appropriate classification of sequences, it is possible to have sets whose cross correlation is small in QS situations.