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Title:
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Error rate analysis and optimal power allocation in multiple access relay channels with analog network coding
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Author:
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Ntontin, Konstantinos; Di Renzo, Marco; Pérez Neira, Ana Isabel; Verikoukis, Christos
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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. A&MP - Grup de Processament d'Arrays i Sistemes Multicanal |
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Abstract:
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In this paper, we examine multi-source multi-relay
systems that employ Analog Network Coding for which we
provide a two-fold contribution: i) We derive a closed-form
upper bound of the average symbol error rate (SER) per source
of the system, which is shown to be tight in the high-Signalto-
Noise Ratio (SNR) region, especially for a high number of
relays, and ii) based on this bound, for a given total power
budget to be distributed among the source and relay nodes we
formulate the power allocation optimization problem with the
aim of minimizing the SER per source. Results show that for
a common target SER among the sources, an increase in their
number results in an increase in the expected energy gains over
the equal power allocation for all the nodes policy. |
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Abstract:
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Peer Reviewed |
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Subject(s):
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-Àrees temàtiques de la UPC::Enginyeria de la telecomunicació::Radiocomunicació i exploració electromagnètica::Comunicacions mòbils
-Wireless communication systems
-Channel coding
-Error statistics
-Multi-access systems
-Network coding
-OptimisationM
-Resource allocation
-Comunicació sense fil, Sistemes de |
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Rights:
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Document type:
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Article - Published version
Conference Object |
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Published by:
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Institute of Electrical and Electronics Engineers (IEEE)
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