Distributed Massive MIMO in Cellular Networks: Impact of Imperfect Hardware and Number of Oscillators

Emil Björnson, Michail Matthaiou, Antonios Pitarokoilis, Erik G. Larsson

Research output: Contribution to conferencePaperpeer-review

21 Citations (Scopus)

Abstract

Distributed massive multiple-input multiple-output (MIMO) combines the array gain of coherent MIMO processing with the proximity gains of distributed antenna setups. In this paper, we analyze how transceiver hardware impairments affect the downlink with maximum ratio transmission. We derive closed-form spectral efficiencies expressions and study their asymptotic behavior as the number of the antennas increases. We prove a scaling law on the hardware quality, which reveals that massive MIMO is resilient to additive distortions, while multiplicative phase noise is a limiting factor. It is also better to have separate oscillators at each antenna than one per BS.
Original languageEnglish
Publication statusPublished - 31 Aug 2015
EventThe 2015 European Signal Processing Conference (EUSIPCO 2015) - Nice, France
Duration: 31 Aug 201504 Sep 2015

Conference

ConferenceThe 2015 European Signal Processing Conference (EUSIPCO 2015)
Country/TerritoryFrance
CityNice
Period31/08/201504/09/2015

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