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A hybrid interference cancellation scheme for blind multiuser detection in multipath fading channels

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Journal of Electronics (China)

Abstract

This paper introduces and analyzes a detection scheme for adaptive suppression of Multiuser Access Interference (MAI) and MultiPath Distortion (MPD) for mobile station of DS/CDMA system. The proposed detection scheme may amount to a RAKE receiver structure, wherein each branch is considered as a linear multiuser filter designed under a Linear Constrained Minimum Variance (LCMV) optimization strategy to suppress MAI, followed by a proper combining rule to suppress MPD. The adaptive blind multiuser detecting and optimum combining of the proposed receiver are realized, based on the Least-Mean-Square (LMS) algorithm and an adaptive vector tracking algorithm respectively. Finally, the feasibility of the above two algorithms is proved by the numerical results provided by computer simulation.

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Authors and Affiliations

  1. Dept. of Communication Eng., Nanjing University of Posts and Telecommunications, 210003, Nanjing

    Fu Haiyang & Tao Naiyong

  2. Dept. of Radio Engineering, Southeast University, 210096, Nanjing

    Zhao Chunming

Authors
  1. Fu Haiyang
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  2. Tao Naiyong
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  3. Zhao Chunming
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Fu, H., Tao, N. & Zhao, C. A hybrid interference cancellation scheme for blind multiuser detection in multipath fading channels. J. of Electron.(China) 19, 43–49 (2002). https://doi.org/10.1007/s11767-002-0007-1

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  • DOI: https://doi.org/10.1007/s11767-002-0007-1

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