Balancing egoistic and altruistic transmit beamforming in femtocell networks

Mika Husso*, Alexis Dowhuszko, Jyri Hämäläinen, Adriano Pastore, Javier Fonollosa

*Corresponding author for this work

Research output: Chapter in Book/Report/Conference proceedingConference contributionScientificpeer-review

1 Citation (Scopus)

Abstract

In this paper, we study the balancing of egoistic (maximum-ratio, MR) and altruistic (zero-forcing, ZF) beamforming (BF) in femtocells through simulations. To investigate the achievable gains from operating between the extremes (egoism/altruism) we analyze the performance of beamformers constructed as linear combinations of the MR and ZF beamformers in case of equal gain transmission. We find that significant gains can be achieved if each femto access point (FAP) has knowledge of the preferred MR and ZF beamforming vectors and can choose its strategy accordingly. We also show that the optimality of any such strategy is strongly influenced by the applied criteria (sum rate maximization, fairness etc.).

Original languageEnglish
Title of host publication2011 Future Network and Mobile Summit, FutureNetw 2011
Publication statusPublished - 2011
MoE publication typeA4 Article in a conference publication
EventFuture Network and Mobile Summit - Warsaw, Poland
Duration: 15 Jun 201117 Jun 2011

Conference

ConferenceFuture Network and Mobile Summit
Abbreviated titleFutureNetw
CountryPoland
CityWarsaw
Period15/06/201117/06/2011

Keywords

  • Altruistic
  • Egoistic
  • Femtocell
  • Transmit Beamforming

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