Title :
A novel DS/SS system with complex chaotic spreading sequence
Author :
Htut, Su Myat ; Kurian, Ajeesh P. ; Puthusserypady, Sadasivan
Author_Institution :
Dept. of Electr. & Comput. Eng., Nat. Univ. of Singapore, Singapore
Abstract :
In this paper, a novel direct sequence/spread spectrum (DS/SS) communication scheme is proposed which exploits the 2-D complex chaotic Ikeda map (IM) as the spreading sequence. With the proposed system, we can mitigate multiple access interference (MAI) by selecting the codes with appropriate cross correlation characteristics. The performance of the proposed complex spreading DS/SS system is assessed and demonstrated in multiuser environment by means of computer simulation. Studies reveal that the new system significantly outperforms the Gold code based DS/SS-BPSK system.
Keywords :
error statistics; interference suppression; phase shift keying; pseudonoise codes; spread spectrum communication; DS-SS system; DS-SS-BPSK system; Ikeda map; binary phase shift keying; complex chaotic spreading sequence; cross correlation characteristics; direct sequence; multiple access interference; multiuser environment; spread spectrum communication scheme; Bit error rate; Chaos; Chaotic communication; Computer simulation; Drives; Gold; Machine assisted indexing; Multiaccess communication; Multiple access interference; Transmitters;
Conference_Titel :
Vehicular Technology Conference, 2003. VTC 2003-Spring. The 57th IEEE Semiannual
Print_ISBN :
0-7803-7757-5
DOI :
10.1109/VETECS.2003.1207194
