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A Low-Complexity Joint Synchronization and Detection Algorithm for Single-Band DS-CDMA UWB Communications

Abstract

The problem of asynchronous direct-sequence code-division multiple-access (DS-CDMA) detection over the ultra-wideband (UWB) multipath channel is considered. A joint synchronization, channel-estimation, and multiuser detection scheme based on the adaptive linear minimum mean square error (LMMSE) receiver is presented and evaluated. Further, a novel nonrecursive least-squares algorithm capable of reducing the complexity of the adaptation in the receiver while preserving the advantages of the recursive least-squares (RLS) algorithm is presented.

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Correspondence to Lars P. B. Christensen.

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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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Christensen, L.P.B. A Low-Complexity Joint Synchronization and Detection Algorithm for Single-Band DS-CDMA UWB Communications. EURASIP J. Adv. Signal Process. 2005, 475431 (2005). https://doi.org/10.1155/ASP.2005.462

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  • DOI: https://doi.org/10.1155/ASP.2005.462

Keywords and phrases

  • ultra-wideband
  • direct-sequence code-division multiple-access
  • multiuser detection
  • low-complexity adaptive receivers
  • synchronization