Title :
New polyphase sequences with good even and odd crosscorrelation properties
Author :
Park, So Ryoung ; Song, Iickho ; Yoon, Seokho ; Kim, Yun Hee
Author_Institution :
Dept. of Electr. Eng. & Comput. Sci., Korea Adv. Inst. of Sci. & Technol., Daejeon, South Korea
Abstract :
A class of polyphase signature sequences for direct sequence code division multiple access (DS/CDMA) systems is proposed. The proposed class has zero periodic (=even) crosscorrelation and approximate maximum odd crosscorrelation value N/π, when N is the length of sequences. It is shown that the maximum odd crosscorrelation value of the new sequence has little effect on the performance of the system. The performance of the proposed sequence in DS/CDMA systems is investigated and shown to be better than that of other sequences under asynchronous additive white Gaussian noise channel environment
Keywords :
AWGN channels; approximation theory; binary sequences; code division multiple access; correlation methods; spread spectrum communication; DS/CDMA systems; Gold sequences; additive white Gaussian noise channel; approximate maximum odd crosscorrelation; asynchronous AWGN channel; binary sequences; direct sequence code division multiple access; even crosscorrelation; polyphase signature sequences; sequence length; system performance; zero periodic crosscorrelation; Additive white noise; Communication systems; Correlators; Direct-sequence code-division multiple access; Gold; Multiaccess communication; Performance analysis; System analysis and design; System performance;
Conference_Titel :
MILCOM 2000. 21st Century Military Communications Conference Proceedings
Conference_Location :
Los Angeles, CA
Print_ISBN :
0-7803-6521-6
DOI :
10.1109/MILCOM.2000.905028
