Field test results for beam and null simultaneous steering S/T-Equalizer in broadband mobile communication environment

Nobuhiko Miki, Takahiro Asai, Shigeru Tomisato, Tadashi Matsumoto

Research output: Contribution to journalConference article


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. A series of field tests was then conducted using the 5 GHz frequency band to evaluate transmission performance of the proposed system. The 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)1663-1668
Number of pages6
JournalIEEE Vehicular Technology Conference
Issue number52 ND
Publication statusPublished - Dec 1 2000
Event52nd Vehicular Technology Conference (IEEE VTS Fall VTC2000) - Boston, MA, USA
Duration: Sep 24 2000Sep 28 2000


ASJC Scopus subject areas

  • Computer Science Applications
  • Electrical and Electronic Engineering
  • Applied Mathematics

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