MIMO broadcasting for simultaneous wireless information and power transfer: Weighted MMSE approaches

Changick Song, Cong Ling, Jaehyun Park, Bruno Clercks

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

12 Citations (Scopus)

Abstract

We consider simultaneous wireless information and power transfer (SWIPT) in MIMO Broadcast networks where one energy harvesting (EH) user and one information decoding (ID) user share the same time and frequency resource. In contrast to previous SWIPT systems based on the information rate, this paper addresses the problem in terms of the weighted minimum mean squared error (WMMSE) criterion. First, we formulate the WMMSE-SWIPT problem which minimizes the weighted sum-MSE of the message signal arrived at the ID user, while satisfying the requirement on the energy that can be harvested from the signal at the EH user. Then, we propose the optimal precoder structure of the problem and identify the best possible MSE-energy tradeoff region through the alternative update of the linear precoder at the transmitter with the linear receiver at the ID user. From the derived solution, several interesting observations are made compared to the conventional SWIPT designs.

Original languageEnglish
Title of host publication2014 IEEE Globecom Workshops, GC Wkshps 2014
PublisherInstitute of Electrical and Electronics Engineers Inc.
Pages1151-1156
Number of pages6
ISBN (Electronic)9781479974702
DOIs
Publication statusPublished - 2014 Mar 18
Event2014 IEEE Globecom Workshops, GC Wkshps 2014 - Austin, United States
Duration: 2014 Dec 82014 Dec 12

Other

Other2014 IEEE Globecom Workshops, GC Wkshps 2014
CountryUnited States
CityAustin
Period14/12/814/12/12

ASJC Scopus subject areas

  • Computer Networks and Communications
  • Communication

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    Song, C., Ling, C., Park, J., & Clercks, B. (2014). MIMO broadcasting for simultaneous wireless information and power transfer: Weighted MMSE approaches. In 2014 IEEE Globecom Workshops, GC Wkshps 2014 (pp. 1151-1156). [7063588] Institute of Electrical and Electronics Engineers Inc.. https://doi.org/10.1109/GLOCOMW.2014.7063588