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Multiuser Receiver Design for Differential-Space-Time-Coded CDMA Systems |
Chen Zhong-lin; Zhu Guang-xi; Cai Wei |
Dept of Electron. & Info. Eng., Huazhong Univ. of Sci. and Tech., Wuhan 430074 China |
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Abstract Based on code division multiple access and amicable orthogonal design, a non-coherent space-time transmission scheme is proposed for multiple-antenna systems, which allows full-diversity communication and is resistant to multiuser interference. Then a differ-ential decorrelative receiver is given for flat Rayleigh fading channels, which decouples not only the detection of different users but also the decoding of different data symbols.
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Received: 19 April 2003
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