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Impact of Channel Estimation Errors on Multiuser Detection via the Replica Method

Abstract

For practical wireless DS-CDMA systems, channel estimation is imperfect due to noise and interference. In this paper, the impact of channel estimation errors on multiuser detection (MUD) is analyzed under the framework of the replica method. System performance is obtained in the large system limit for optimal MUD, linear MUD, and turbo MUD, and is validated by numerical results for finite systems.

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Correspondence to Husheng Li.

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Open Access This article is distributed under the terms of the Creative Commons Attribution 2.0 International License ( https://creativecommons.org/licenses/by/2.0 ), which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.

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Li, H., Poor, H.V. Impact of Channel Estimation Errors on Multiuser Detection via the Replica Method. J Wireless Com Network 2005, 807350 (2005). https://doi.org/10.1155/WCN.2005.175

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Keywords

  • CDMA
  • multiuser detection
  • replica method
  • channel estimation