Reference : Resource Allocation for AF Relaying Wireless-Powered Networks with Nonlinear Energy H...
Scientific journals : Article
Engineering, computing & technology : Electrical & electronics engineering
http://hdl.handle.net/10993/44199
Resource Allocation for AF Relaying Wireless-Powered Networks with Nonlinear Energy Harvester
English
Nguyen, Tien-Tung []
Nguyen, van Dinh mailto [University of Luxembourg > Interdisciplinary Centre for Security, Reliability and Trust (SNT) > >]
Pham, Quoc-Viet []
Lee, Jong-Ho []
Kim, Yong-Hwa []
In press
IEEE Communications Letters
Institute of Electrical and Electronics Engineers
Yes (verified by ORBilu)
1089-7798
New York
NY
[en] Amplify-and-forward relay ; nonlinear energy ; wireless-powered communications
[en] This letter considers a relay-based wireless-powered communication network to assist wireless communication between a source and multiple users. In particular, the relay adopts a nonlinear energy model to harvest energy from a power beacon and subsequently uses it for information transmission over timedivision multiple access. Aiming at the maximization of end-toend (e2e) sum throughput, we formulate a novel optimization problem that jointly optimizes the power and time fraction for energy and information transmission. For a simple yet efficient solution for the nonconvex problem, we first convert it to a more computationally tractable problem and then develop an iterative algorithm, in which closed-form solutions are obtained at each iteration. The effectiveness of our proposed approach is verified and demonstrated through simulation results. Moreover, the results reveal that the source should transmit with its maximum allowable power budget to obtain the optimal e2e sum throughput.
Interdisciplinary Centre for Security, Reliability and Trust (SnT) > SIGCOM
Fonds National de la Recherche - FnR
Researchers ; Professionals ; General public
http://hdl.handle.net/10993/44199
FnR ; FNR11037543 > Bjorn Ottersten > InWIPNET > Integrated Wireless Information and Power Networks > 01/10/2016 > 30/09/2020 > 2015

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