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Blind MOE Interference Canceller for Multicarrier DS-CDMA Systems  

Woo Dae Ho ((주)플레넷 전자통신연구소)
Byun Youn Shik (인천대학교 전자공학과)
Abstract
In The objective of this paper is to apply blind minimum output energy multiuser detection method to multicarrier direct sequence code division multiple access system. The performance of MC/DS-CDMA is reduced due to multiple access. To increase the performance of system, we need to cancel multiple user components. Blind interference canceller is able to detect the desired's information with the only minimal information of the desired user. We evaluate the performance of the proposed receiver under Gaussian channel. Simulation results show that the proposed receiver has about 6[dB] gain of signal to noise ratio without multiple user interference and has about 3[dB] gain of SNR with multiple user interference. Also, the result of comparing the capacity of the active users shows that the proposed method has about 2 times capacity more than conventional method. As a conclusion, simulation results show that the proposed method has better performs better than conventional method.
Keywords
Multicarrier DS-CDMA system; Blind; MOE; Interference Canceller;
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