RF energy harvesting enabled power sharing in relay networks

Xueqing Huang, Nirwan Ansari

Research output: Chapter in Book/Report/Conference proceedingConference contribution

10 Scopus citations

Abstract

Through simultaneous energy and information transfer, radio frequency (RF) energy harvesting (EH) reduces the energy consumption of the wireless networks. It also provides a new approach for the wireless devices to share each other's energy storage, without relying on the power grid or traffic offloading. In this paper, we study RF energy harvesting enabled power balancing within the decode-and-forward (DF) relaying-enhanced cooperative wireless system. An optimal power allocation policy is proposed for the scenario where both source and relay nodes can draw power from the radio frequency signals transmitted by each other. To maximize the overall throughput while meeting the energy constraints imposed by the RF sources, an optimization problem is formulated and solved. Based on different harvesting efficiency and channel condition, closed form solutions for optimal joint source and relay power allocation are derived.

Original languageEnglish (US)
Title of host publication2014 IEEE Online Conference on Green Communications, OnlineGreenComm 2014
PublisherInstitute of Electrical and Electronics Engineers Inc.
ISBN (Electronic)9781479973842
DOIs
StatePublished - May 28 2014
Event2014 IEEE Online Conference on Green Communications, OnlineGreenComm 2014 - Online Only, United States
Duration: Nov 12 2014Nov 14 2014

Publication series

Name2014 IEEE Online Conference on Green Communications, OnlineGreenComm 2014

Other

Other2014 IEEE Online Conference on Green Communications, OnlineGreenComm 2014
CountryUnited States
CityOnline Only
Period11/12/1411/14/14

All Science Journal Classification (ASJC) codes

  • Computer Networks and Communications

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