Wireless energy harvesting massive MIMO relays

Gayan Amarasuriya, Shang Liu, H. Vincent Poor

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

2 Scopus citations

Abstract

The trade-off between the achievable sum rate and harvested energy is investigated for multi-user/multi-cell massive multiple-input multiple-output (MIMO) relay networks. To this end, the antenna array at the relay is switched periodically between the energy harvesting and information processing modes, and the harvested energy is utilized for the relay's transmissions. Closed-form expressions for the asymptotic signal-to-interference-plus-noise ratio, achievable sum rate and harvested energy at the relay are derived whenever the numbers of antennas at the relay and destination grow without bound. This analysis reveals that the presence of co-channel interference (CCI) can be exploited to significantly boost the harvested energy at the massive MIMO relay. However, the detrimental effects of CCI for signal decoding can effectively be mitigated by using a zero-forcing linear detector at the destination in the limit of infinitely many relay and destination antennas.

Original languageEnglish (US)
Title of host publication2016 IEEE Sensor Array and Multichannel Signal Processing Workshop, SAM 2016
PublisherIEEE Computer Society
ISBN (Electronic)9781509021031
DOIs
StatePublished - Sep 15 2016
Event2016 IEEE Sensor Array and Multichannel Signal Processing Workshop, SAM 2016 - Rio de Rio de Janeiro, Brazil
Duration: Jul 10 2016Jul 13 2016

Publication series

NameProceedings of the IEEE Sensor Array and Multichannel Signal Processing Workshop
Volume2016-September
ISSN (Electronic)2151-870X

Other

Other2016 IEEE Sensor Array and Multichannel Signal Processing Workshop, SAM 2016
CountryBrazil
CityRio de Rio de Janeiro
Period7/10/167/13/16

All Science Journal Classification (ASJC) codes

  • Signal Processing
  • Control and Systems Engineering
  • Electrical and Electronic Engineering

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  • Cite this

    Amarasuriya, G., Liu, S., & Poor, H. V. (2016). Wireless energy harvesting massive MIMO relays. In 2016 IEEE Sensor Array and Multichannel Signal Processing Workshop, SAM 2016 [7569750] (Proceedings of the IEEE Sensor Array and Multichannel Signal Processing Workshop; Vol. 2016-September). IEEE Computer Society. https://doi.org/10.1109/SAM.2016.7569750