Title :
Complex Orthogonal Spreading Sequences using Mutually Orthogonal Complementary Sets
Author :
Zhao, Ying ; Seberry, Jennifer ; Wysocki, Beata J. ; Wysocki, Tadeusz A.
Author_Institution :
Univ. of Wollongong, Wollongong
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.
Keywords :
code division multiple access; correlation methods; set theory; spread spectrum communication; Walsh-Hadamard sequence sets; asynchronous multiuser CDMA system; complex orthogonal spreading sequences; correlation properties; diagonal modification method; mutually orthogonal complementary sets; Autocorrelation; Bismuth; Interference; Interleaved codes; Multiaccess communication; Phase modulation; Propagation delay;
Conference_Titel :
Microwaves, Radar & Wireless Communications, 2006. MIKON 2006. International Conference on
Conference_Location :
Krakow
Print_ISBN :
978-83-906662-7-3
DOI :
10.1109/MIKON.2006.4345256
