Interference mitigation depending on the number of antennas and CSI available at femtocells

Genji Hayashi, Tomoaki Ohtsuki

研究成果: Conference contribution

1 被引用数 (Scopus)

抄録

Femtocells have become popular recently as a key technology to improve coverage in indoor environments. However, since femto base stations (FBSs) utilize the same spectrum as existing macro base stations (MBSs), interference between macrocells and femtocells as well as between femtocells needs to be carefully controlled. In this paper, we propose adjacent cell interference mitigation techniques exploiting transmit power control and beamforming depending on the number of antennas and channel state information (CSI) available at FBSs in the environment where closed subscriber group (CSG) FBSs are deployed densely in a macrocell. Simulation results show that the proposed techniques are effective for improving the signal-to-interference plus noise ratio (SINR) for all user equipments (UEs) including both macro and femto UEs at 5 % of the cumulative distribution function (CDF).

本文言語English
ホスト出版物のタイトル2012 International Symposium on Information Theory and Its Applications, ISITA 2012
ページ150-154
ページ数5
出版ステータスPublished - 2012 12月 1
イベント2012 International Symposium on Information Theory and Its Applications, ISITA 2012 - Honolulu, HI, United States
継続期間: 2012 10月 282012 10月 31

出版物シリーズ

名前2012 International Symposium on Information Theory and Its Applications, ISITA 2012

Other

Other2012 International Symposium on Information Theory and Its Applications, ISITA 2012
国/地域United States
CityHonolulu, HI
Period12/10/2812/10/31

ASJC Scopus subject areas

  • コンピュータ サイエンスの応用
  • 情報システム

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