DISTRIBUTED MASSIVE MIMO IN CELLULAR NETWORKS: IMPACT OF IMPERFECT HARDWARE AND NUMBER OF OSCILLATORS
Paper i proceeding, 2015

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.

systems

phase noise

Författare

E. Bjornson

Michail Matthaiou

Chalmers, Signaler och system, Signalbehandling och medicinsk teknik, Signalbehandling

A. Pitarokoilis

E. G. Larsson

2015 23rd European Signal Processing Conference

2076-1465 (ISSN)

2436-2440

Ämneskategorier

Elektroteknik och elektronik

ISBN

978-0-9928-6263-3

Mer information

Skapat

2017-10-08