MISC

査読有り
2001年

A spatio-temporal equalization method for indoor wireless LANs with beamforming criterion selection

IEEE Vehicular Technology Conference
  • K. Hayashi
  • ,
  • S. Hara

1
54ND
開始ページ
506
終了ページ
510
記述言語
英語
掲載種別
DOI
10.1109/VTC.2001.956652
出版者・発行元
IEEE

Spatio-temporal equalization is a technique which utilizes both spatial and temporal information of received signal to compensate intersymbol interference due to multipath fading. Considering application of a spatio-temporal equalizer to high speed wireless communications systems, such as wireless LANs, this paper proposes a new spatio-temporal equalization method using a cascade configuration of an adaptive array and a DFE (Decision Feedback equalizer), which can be realized with small number of weights, and hence, low computational complexity. However, it has to pay a price for the simplicity, namely, the error performance surface becomes a fourth-order function of the weights, and possible has two minima. In order to avoid wrong trap by a local minimum during the adaptation of MMSE (Minimum Mean-Squared Error) based adaptation algorithm with any initial values, the proposed equalizer calculates the weights of the adaptive array and the DFE separately in two steps, and the adaptive array selects a path or paths to capture depending on channel conditions. Computer simulation results show that the proposed method can achieve good performance in various channel models, which are based on measurement reports, in low computational complexity.

リンク情報
DOI
https://doi.org/10.1109/VTC.2001.956652
DBLP
https://dblp.uni-trier.de/rec/conf/vtc/HayashiH01
Scopus
https://www.scopus.com/inward/record.uri?partnerID=HzOxMe3b&scp=0035183326&origin=inward
Scopus Citedby
https://www.scopus.com/inward/citedby.uri?partnerID=HzOxMe3b&scp=0035183326&origin=inward
URL
https://dblp.uni-trier.de/conf/vtc/2001f
URL
https://dblp.uni-trier.de/db/conf/vtc/vtc2001f.html#HayashiH01
ID情報
  • DOI : 10.1109/VTC.2001.956652
  • ISSN : 0740-0551
  • DBLP ID : conf/vtc/HayashiH01
  • SCOPUS ID : 0035183326

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