Practical Nonlinear Energy Harvesting Model in MIMO DF Relay System with Channel Uncertainty

Fatma Benkhelifa, Mohamed-Slim Alouini

Research output: Chapter in Book/Report/Conference proceedingConference proceedingpeer-review

1 Citation (Scopus)
13 Downloads (Pure)


In this paper, we aim to maximize the end-to-end achievable rate of multiple-input multiple-output (MIMO) decode-and-forward (DF) where the relay is an energy harvesting (EH) node using the time switching (TS) scheme. The relay first harvests the energy from the source, then uses its harvested energy to forward the information carrying signal from the source to the destination. The EH model at the relay is a nonlinear model. Also, we assume that the channel knowledge is imperfect at the relay and destination. We propose the structure of the optimal covariance matrices at the source (during EH and information decoding periods), the optimal covariance matrix at the relay and the optimal EH time ratio. Through the simulation results, we compare between different linear/nonlinear EH models and we show the gain/loss performance of the linear model compared to other nonlinear EH models
Original languageEnglish
Title of host publicationIEEE Global Communications Conference (GLOBECOM)
Number of pages7
ISBN (Electronic)978-1-5386-4727-1
Publication statusPublished - 21 Feb 2019
Externally publishedYes
EventIEEE Conference and Exhibition on Global Telecommunications (GLOBECOM) - Abu Dhabi, United Arab Emirates
Duration: 9 Dec 201813 Dec 2018

Publication series

ISSN (Electronic)2576-6813


ConferenceIEEE Conference and Exhibition on Global Telecommunications (GLOBECOM)
Abbreviated titleGLOBECOM
Country/TerritoryUnited Arab Emirates
CityAbu Dhabi
Internet address

Bibliographical note

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  • Relays
  • MIMO communication
  • Receivers
  • Optimization
  • Covariance matrices
  • Wireless communication
  • Mathematical model


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