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Finite horizon throughput maximization for a wirelessly powered device over a time varying channel

Salehi Heydar Abad, Mehdi and Erçetin, Özgür (2019) Finite horizon throughput maximization for a wirelessly powered device over a time varying channel. In: IEEE Global Telecommunications Conference (GC Wkshps), Abu Dhabi, Arab Emirates

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Official URL: http://dx.doi.org/10.1109/GLOCOMW.2018.8644442

Abstract

In this work, we consider an energy harvesting device (EHD) served by an access point with a single antenna that is used for both wireless power transfer (WPT) and data transfer. The objective is to maximize the expected throughput of the EHD over a finite horizon when the channel state information is only available causally. The EHD is energized by WPT for a certain duration, which is subject to optimization, and then, EHD transmits its information bits to the AP until the end of the time horizon by employing optimal dynamic power allocation. The joint optimization problem is modeled as a dynamic programming problem. Based on the characteristic of the problem, we prove that a time dependent threshold type structure exists for the optimal WPT duration, and we obtain closed form solution to the dynamic power allocation in the uplink period.

Item Type:Papers in Conference Proceedings
Uncontrolled Keywords:dynamic programming; wireless power transfer
Subjects:T Technology > TK Electrical engineering. Electronics Nuclear engineering > TK5101-6720 Telecommunication
ID Code:37401
Deposited By:Özgür Erçetin
Deposited On:27 Aug 2019 11:48
Last Modified:27 Aug 2019 11:48

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