Please use this identifier to cite or link to this item: https://doi.org/10.1109/ICASSP.2012.6288503
Title: Optimal resource allocation for Gaussian relay channel with energy harvesting constraints
Authors: Huang, C.
Zhang, R. 
Cui, S.
Keywords: cooperative communication
energy harvesting
relay channel
Throughput
Issue Date: 2012
Source: Huang, C.,Zhang, R.,Cui, S. (2012). Optimal resource allocation for Gaussian relay channel with energy harvesting constraints. ICASSP, IEEE International Conference on Acoustics, Speech and Signal Processing - Proceedings : 2817-2820. ScholarBank@NUS Repository. https://doi.org/10.1109/ICASSP.2012.6288503
Abstract: In this paper, we study the three-node Gaussian relay channel with decode-and-forward (DF) relaying, in which the source and relay nodes transmit with power drawn from energy-harvesting sources. Assuming a deterministic energy-harvesting model under which the energy arrival time and the harvested amount are known prior to transmission, the throughput maximization problem over a finite horizon of N transmission blocks is investigated. We consider the nodelay-constrained (NDC) traffic case, for which the relay can store the decoded information from the source with arbitrary delay before forwarding it to the destination in each N-block transmission. Although the formulated problem is non-convex, we prove the optimality of a separation principle for the source and relay power allocation over time, based upon which a two-stage algorithm is developed to obtain the optimal source and relay power profiles separately. © 2012 IEEE.
Source Title: ICASSP, IEEE International Conference on Acoustics, Speech and Signal Processing - Proceedings
URI: http://scholarbank.nus.edu.sg/handle/10635/71298
ISBN: 9781467300469
ISSN: 15206149
DOI: 10.1109/ICASSP.2012.6288503
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