Title:
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Balancing egoistic and altruistic transmit beamforming in femtocell networks
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Author:
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Husso, Mika; Dowhuszko, Alexis; Hamalainen, K.; Pastore, Adriano; Rodríguez Fonollosa, Javier
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Other authors:
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Universitat Politècnica de Catalunya. Departament de Teoria del Senyal i Comunicacions; Universitat Politècnica de Catalunya. SPCOM - Grup de Recerca de Processament del Senyal i Comunicacions |
Abstract:
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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.). |
Abstract:
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Peer Reviewed |
Subject(s):
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-Àrees temàtiques de la UPC::Enginyeria de la telecomunicació::Processament del senyal -Signal processing -Altruistic -Femtocell -Transmit beamforming -Egoistic -Tractament del senyal |
Rights:
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Document type:
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Article - Published version Conference Object |
Published by:
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Institute of Electrical and Electronics Engineers (IEEE)
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