Complex Orthogonal Spreading Sequences Using Mutually Orthogonal Complementary Sets

Authors

Y. Zhao, University of WollongongFollow
Jennifer Seberry, University of WollongongFollow
Beata J. Wysocki, University of WollongongFollow
Tadeusz A. Wysocki, University of WollongongFollow

RIS ID

22649

Publication Details

This book chapter was originally published as Zhao, Y, Seberry, J, Wysocki, BJ and Wysocki, TA, Complex Orthogonal Spreading Sequences Using Mutually Orthogonal Complementary Sets in Tran, LC, Wysocki, TA, Mertins, A and Seberry, J (eds), Complex Orthogonal Space-Time Processing in Wireless Communications, Springer-Verlag, 2006. Orignal book available here.

Abstract

This paper presents a new family of complex spreading sequences designed using mutually orthogonal(MO) complementary sets. Based on the technique described in this paper, the correlation properties of sets of sequences are compared to well-known Walsh-Hadamard sequence sets. Further improvement of correlation qualities can be achieved by employing a diagonal modification method. We also present simulation results of an asynchronous multiuser CDMA system using the modified sequences.