Título:
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Optimal power allocation and relay selection in green cooperative communication
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Autor/a:
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Ling, Cen; Ruiz Boqué, Sílvia; Yin, Xuefeng; García Lozano, Mario
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Otros autores:
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Universitat Politècnica de Catalunya. Departament de Teoria del Senyal i Comunicacions; Universitat Politècnica de Catalunya. WiComTec - Grup de recerca en Tecnologies i Comunicacions Sense Fils |
Abstract:
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—Cooperative communication with spectrum sharing
has been proved as an efficient way to reduce energy
consumption. In this work, we address the problem of the
best relay selection and optimal power allocation. In this
system model, secondary user (SU) acts as relay to assist
in the transmission of primary user (PU) with the reward
to transmit its own information. On one hand, the SU is
selected using the metric of the energy efficiency by considering
the outage capacity and energy consumption in a
decoding and forward (DF) relaying. On the other hand, the
optimal power allocation is obtained from solving a convex
optimization problem aiming at minimizing network energy
consumption with guaranteed quality of service (QoS).
It is observed that cooperative communication performs
better than non-cooperation transmission in saving network
consumption. It is also noted that more candidates of the
SUs leads to lower power consumption of the network and
better energy efficiency |
Abstract:
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Peer Reviewed |
Materia(s):
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-Àrees temàtiques de la UPC::Enginyeria de la telecomunicació -Àrees temàtiques de la UPC::Energies::Gestió de l’energia::Estalvi energètic -Energy consumption -Communication -Energia -- Consum -Comunicació |
Derechos:
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Tipo de documento:
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Artículo - Versión publicada Objeto de conferencia |
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