Interference Mitigation by Practical Transmit Beamforming Methods in Closed Femtocells

Mika Husso*, Jyri Hämäläinen, Riku Jäntti, Juan Li, Edward Mutafungwa, Risto Wichman, Zhong Zheng, Alexander M. Wyglinski

*Corresponding author for this work

Research output: Contribution to journalArticleScientificpeer-review

27 Citations (Scopus)
123 Downloads (Pure)

Abstract

We present an analysis of a femtocellular communications network and the impact of cochannel interference on link performance. Furthermore, we propose a method whereby user terminals can maintain a controlonly connection to an adjacent femtocell for interference mitigation purposes. Specifically, we provide an emphasis on suboptimal but practical methods that rely on transmit beamforming. Our numerical results demonstrate that even simple multiantenna methods can be effectively used to suppress co-channel interference provided that control channel connection between interfering femto-base station and user terminal is allowed. Copyright © 2010 Mika Husso et al.

Original languageEnglish
Article number186815
Pages (from-to)1-12
Number of pages12
JournalEURASIP Journal on Wireless Communications and Networking
Volume2010
DOIs
Publication statusPublished - 2010
MoE publication typeA1 Journal article-refereed

Keywords

  • Femtocells
  • HSDPA
  • interference mitigation
  • transmit beamforming

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