A Novel Joint Detection of Frequency Offset and MAI for MC-CDMA Systems |
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Authors: | Yanjun Hu Boukerche A |
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Affiliation: | Anhui Univ., Hefei; |
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Abstract: | While multicarrier CDMA techniques are used to reduce interference and improve the performance of the system in fading channel, carrier frequency offset and multiple access interference remain major obstacles for a multicarrier CDMA system's performance. In this article we propose a novel joint detection method called modified maximum likelihood multistage parallel interference canceller (M-ML-MPIC) to eliminate the frequency offset and MAI simultaneously. The main idea of our approach is to combine PIC multiuser detection and frequency offset estimation based on a maximum likelihood function with guard interval. We discuss our scheme and report on its performance using a set of simulation experiments. |
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