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An Overview of Massive MIMO Research at the University of Bristol

By Paul Harris, Wael Boukley Hasan, Henry Brice, Benny Chitambira, Mark Beach, Evangelos Mellios, Andrew Nix, Simon Armour and Angela Doufexi

Abstract

Massive MIMO has rapidly gained popularity as a technology crucial to the capacity advances required for 5G wireless systems. Since its theoretical conception six years ago, research activity has grown exponentially, and there is now a developing industrial interest to commercialise the technology. For this to happen effectively, we believe it is crucial that further pragmatic research is conducted with a view to establish how reality differs from theoretical ideals. This paper presents an overview of the massive MIMO research activities occurring within the Communication Systems & Networks Group at the University of Bristol centred around our 128-antenna real-time testbed, which has been developed through the BIO programmable city initiative in collaboration with NI and Lund University. Through recent preliminary trials, we achieved a world first spectral efficiency of 79.4 bits/s/Hz, and subsequently demonstrated that this could be increased to 145.6 bits/s/Hz. We provide a summary of this work here along with some of our ongoing research directions such as large-scale array wave-front analysis, optimised power control and localisation techniques.Comment: Presented at the IET Radio Propagation and Technologies for 5G Conference (2016). 5 page

Topics: Computer Science - Information Theory
Publisher: 'Institution of Engineering and Technology (IET)'
Year: 2017
DOI identifier: 10.1049/ic.2016.0064
OAI identifier: oai:arXiv.org:1705.07540

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