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Performance Analysis of Dualrate MC-CDMA Systems Using Hybrid Interference Cancellation  

Kim Nam-Sun (대진대학교 통신공학과)
Publication Information
The Journal of Korean Institute of Communications and Information Sciences / v.31, no.3C, 2006 , pp. 228-236 More about this Journal
Abstract
A Multicarrier code division multiple access(MC-CDMA) is a scheme that combines multicarrier modulation with CDMA. It offers robustness to frequency selective fading effect and can support higher rate data transmission with higher spectral efficiency. The objective of this article is proposed and analyzed a new asynchronous MC-CDMA system with various kinds of data rates which employs a multiple access interference (MAI) canceller. The proposed multirate MC-CDMA system can be accomplished by changing the number of Parallel branch(P) according to their data rate and hybrid interference canceller(HIC) are used for MAI cancellation. We compare the performance of proposed system in terms of average bit error rate(BER) with that of a single rate MC-CDMA system. The results show the large improvement in performance that can be attained by the cancellation scheme under multipath environments.
Keywords
Multirate system; MC-CDMA; Interference Cancellation;
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