Multi-way amplify-and-forward relay networks with massive MIMO

Gayan Amarasuriya, H. Vincent Poor

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

21 Scopus citations

Abstract

The performance of amplify-and-forward (AF) multi-way relay networks (MWRNs) with very large relay antenna arrays is investigated. Asymptotic signal-to-interference-plus-noise ratio (SINR) expressions are derived when the number of antennas at the relay is substantially higher than the number of user nodes. These asymptotic SINRs are independent of the fast fading component of the wireless channel, and hence, the latency in the air interface due to fast fading can be reduced. The transmit power at each user node and/or relay can be scaled down inversely proportional to the number of antennas at the relay without degrading the system performance. The asymptotic SINR expressions are then used to derive asymptotic spectral and energy efficiencies of AF MWRNs with symmetric and asymmetric data traffic. These spectral and energy efficiency results show that MWRNs with massive MIMO achieve substantial multIPlexing gains while allowing the transmit powers of user nodes to become infinitesimal.

Original languageEnglish (US)
Title of host publication2014 IEEE 25th Annual International Symposium on Personal, Indoor, and Mobile Radio Communication, PIMRC 2014
PublisherInstitute of Electrical and Electronics Engineers Inc.
Pages595-600
Number of pages6
ISBN (Electronic)9781479949120
DOIs
StatePublished - Jun 25 2014
Event2014 25th IEEE Annual International Symposium on Personal, Indoor, and Mobile Radio Communication, IEEE PIMRC 2014 - Washington, United States
Duration: Sep 2 2014Sep 5 2014

Publication series

NameIEEE International Symposium on Personal, Indoor and Mobile Radio Communications, PIMRC
Volume2014-June

Other

Other2014 25th IEEE Annual International Symposium on Personal, Indoor, and Mobile Radio Communication, IEEE PIMRC 2014
CountryUnited States
CityWashington
Period9/2/149/5/14

All Science Journal Classification (ASJC) codes

  • Electrical and Electronic Engineering

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