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Study on M-ary spread spectrum systems using zero correlation zone code

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3 Author(s)
You Jia ; School of Information Engineering, University of Science and Technology Beijing, Beijing, China ; Zhang Lan ; Wang Bing

The M-ary spread spectrum systems with zero correlation zone (ZCZ) sequences were fabricated and investigated. The results show that the above systems are of stronger anti-multipath interference ability than the Walsh sequences M-ary spread spectrum systems (M-ary SSS). In the case of 2 number of multipath and 0.9 reflecting coefficient, for BER=4E-3, the degradation of the S/N is only 0.3 dB in ZCZ sequence 4-ary SSS and about 3.8 dB in Walsh sequence 4-ary SSS. The degradation phenomenon of the latter becomes much significant as the decreasing of BER. These results indicated that ZCZ sequences are suitable to be used as M-ary spread spectrum sequence and the present systems are of high spectrum efficiency and strong anti-multipath interference ability.

Published in:

Wireless Communications & Signal Processing, 2009. WCSP 2009. International Conference on

Date of Conference:

13-15 Nov. 2009