Field test results for a beam and null simultaneous steering S/T-equalizer in broadband mobile communication environments

T. Asai, S. Tomisato, T. Matsumoto

Research output: Contribution to journalArticle

6 Citations (Scopus)

Abstract

This paper proposes a beam and null simultaneous steering Space-Time Equalizer (S/T-Equalizer). The proposed S/T-Equalizer performs separated S/T-signal processing in order to reduce computational complexity to a practical level. For spatial signal processing, a new Adaptive Array Antenna algorithm is used that combines the beam and null steering concepts. For temporal signal processing, a conventional delayed decision feedback sequence estimation equalizer may be used. The proposed S/T-Equalizer was prototyped, and a series of field tests was conducted using a 5 GHz frequency band to evaluate transmission performances of the proposed system. Results show that the proposed S/T-Equalizer can reduce inter-symbol interference effects while maintaining reasonable signal strength, thereby improving BER performance.

Original languageEnglish
Pages (from-to)1760-1767
Number of pages8
JournalIEICE Transactions on Communications
VolumeE84-B
Issue number7
Publication statusPublished - Jul 2001
Externally publishedYes

Keywords

  • Adaptive array antenna
  • Adaptive equalizer
  • Broadband mobile communication
  • Multipath fading

ASJC Scopus subject areas

  • Software
  • Computer Networks and Communications
  • Electrical and Electronic Engineering

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