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Semi-blind Constant Modulus Algorithm for CDMA System |
Liu Sheng-mei; Zhao Chun-min; Li Can-wei |
National Mobile Communication Research Laboratory Southeast University Nanjing 210096 China |
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Abstract The semi-blind Constant Modulus (CM) algorithm which applied in the Multi-User Detection (MUD) of CDMA is studied. This approach fully utilizes all known users’ information, performs not-blind detector to suppress the interferes within the cell, and exploits blind detector to suppress the inter-cell interference. Compared with the blind CM algorithm and the decorrelating algorithm, the proposed semi-blind CM algorithm exhibits better SIR and BER performances and it is more robust when the system is heavily loaded.
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Received: 28 May 2003
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