Energy Efficient Communications over the AWGN Relay Channel
Por:
Gomez-Vilardebo, J, Perez-Neira, AI, Najar, M
Publicada:
1 ene 2010
Resumen:
This paper addresses the energy efficiency analysis of the relay channel under additive white Gaussian noise. We consider the rate bounds given by decode and forward and the cut set bound and assume that resources are optimally allocated to maximize the spectral efficiency according to the channel information and the sum network energy. The low energy analysis tools are used to compute the maximum rate per energy (RPE) and the slope of the spectral efficiency as a function of the energy per bit. Using these metrics, the energy efficiency benefit of several capabilities at terminals is investigated. Specifically, we take into account: i) the phase synchronization between transmitters, ii) the full duplex capability at the relay and iii) the channel access via superposition.
Filiaciones:
Gomez-Vilardebo, J:
Ctr Tecnol Catalunya CTTC, Barcelona, Spain
Perez-Neira, AI:
Univ Politecn Cataluna, Dept Signal Theory & Commun, TSC, ES-08034 Barcelona, Spain
Najar, M:
Univ Politecn Cataluna, Dept Signal Theory & Commun, TSC, ES-08034 Barcelona, Spain
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