Title:
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Energy-aware user scheduling for downlink multiuser-MIMO systems
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Author:
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Rubio López, Javier; Pascual Iserte, Antonio
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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 address the problem of designing a
user selection algorithm in a multiuser multiple-input multipleoutput
downlink scenario. Linear precoding is adopted at the
transmitter and, thus, the number of users to be served at
each particular scheduling period is limited by the number of
available transmit and receive antennas. The adopted scheduling
criterion for the user selection is based on proportional fair
criterion. The novelty relies on the fact that the users are
considered to have a finite battery capacity and a harvesting
source that allows them to recharge their batteries dynamically.
The proposed user scheduler mechanism exploits not only the
channel dynamics but also the battery fluctuations. We analyze
how the intensity of the energy arrivals impacts the performance
of the user scheduler. Simulations results show that the average
long-term rates approach the requested quality of service if the
scheduler controls the amount of energy that is being used by
the terminals at each scheduling period. |
Abstract:
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Peer Reviewed |
Subject(s):
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-Àrees temàtiques de la UPC::Enginyeria de la telecomunicació -MIMO systems -Sistemes MIMO |
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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