Rapid equalisation for a high integrity bluetooth receiver

C. Tibenderana, Stephan Weiss, C.L. Koh

Research output: Chapter in Book/Report/Conference proceedingConference contribution book

Abstract

The Bluetooth standard has a lax specification for parameters such
a carrier frequency and modulation index. Research has shown that significant system degradation can occur even when operating within the permitted limits. Hence, a high-integrity Bluetooth receiver will need to compensate for this mismatch. Where multipath propagation exists, it will undermine parameter synchronising algorithms, and taking into account the limited burst lengths of Bluetooth packets, it is essential that equalisation occurs fast enough so as to give algorithms downstream sufficient time to converge, and minimise information loss.
The coloured nature of Bluetooth signals and the possibility of a carrier frequency offsets, limit the choice of equaliser algorithms that can guarantee fast convergence. As a remedy, in this paper we propose the normalised sliding window constant modulus algorithm (NSWCMA), and determine regularisation factors that will optimise speed. We also show that the NSWCMA can outperform the minimum mean square error solution in terms of bit error ratio.
Original languageEnglish
Title of host publication2005 IEEE/SP 13th workshop on statistical signal processing (SSP)
Place of PublicationNew York
PublisherIEEE
Pages161-165
Number of pages5
ISBN (Print)0780394038
DOIs
Publication statusPublished - 2005
EventIEEE/SP 13th Workshop on Statistical Signal Processing - Bordeaux, France, United Kingdom
Duration: 17 Jul 200520 Jul 2005

Conference

ConferenceIEEE/SP 13th Workshop on Statistical Signal Processing
CountryUnited Kingdom
CityBordeaux, France
Period17/07/0520/07/05

Keywords

  • rapid equalisation
  • high integrity
  • bluetooth receiver

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