| MC-CDMA is an integrated technology of OFDM and CDMA. This technology is considered as the core technique of the future 4G wireless communications system, because it kept the advantages of OFDM and CDMA, and can be used for multimedia data transmission. The performance of MC-CDMA system is mainly limited by multiple access interference (MAI).As a key technique of DS-CDMA system, the multiuser detection canjointly detect the signals transmitted by all the users, thereby alleviate the"near-far" effect, cancel the MAI and improve the system performance. In thispaper by applying parallel interference cancellation mulituser detection to MC-CDMA, we have gained some significant results. The main works of this paper can be summarized as follows:1. Analyzed the principle of MC-CDMA system, established the mathematic model of transmission and reception for MC-CDMA system... |
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