A sliding window decorrelating receiver for multiuser DS-CDMA mobile radio networks

GH Norton, JP McGeehan, SSH Wijayasuriya

Research output: Contribution to journalArticle (Academic Journal)peer-review

28 Citations (Scopus)
410 Downloads (Pure)

Abstract

We detail the development of a near-far (NF) resistant sliding window decorrelating algorithm (SLWA) that overcomes the near-far problem (NFP) pertaining to the conventional linear correlation receiver (CLCR) and alleviates some of the limitations of the standard decorrelator. The SLWA architecture is extended to incorporate differentially coherent multipath (RAKE) diversity combining techniques and hence achieves simultaneous rejection of multiuser and multipath interference. This paper also presents a novel algorithm for updating the decorrelator coefficients using a fully parallel architecture. We present a mathematical model for the performance of a sliding window scheme, the main contribution of which is the analysis of finite sequence length multipath decorrelation under the practical limitation of incomplete RAKE combining. In addition to numerical results, we present results pertaining to capacity improvements achieved over the CLCR, derived from a simulation of a multiuser direct-sequence code-division multiple-access (DS-CDMA) mobile radio system
Translated title of the contributionA sliding window decorrelating receiver for multiuser DS-CDMA mobile radio networks
Original languageEnglish
Article number3
Pages (from-to)503 - 521
JournalIEEE Transactions on Vehicular Technology
Volume45
Issue number3
DOIs
Publication statusPublished - Aug 1996

Bibliographical note

Rose publication type: Journal article

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Keywords

  • code division multiple access
  • RAKE combining

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