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On the Performance of Backhaul Constrained Cell-Free Massive MIMO with Linear Receivers
Univ York, England.
Queens Univ Belfast, North Ireland.
Univ York, England.
Univ York, England.
Vise andre og tillknytning
2018 (engelsk)Inngår i: 2018 CONFERENCE RECORD OF 52ND ASILOMAR CONFERENCE ON SIGNALS, SYSTEMS, AND COMPUTERS, IEEE , 2018, s. 624-628Konferansepaper, Publicerat paper (Fagfellevurdert)
Abstract [en]

Limited-backhaul cell-free Massive multiple-input multiple-output (MIMO), in which the fog radio access network (F-RAN) is implemented to exchange the information between access points (APs) and the central processing unit (CPU), is investigated. We introduce a novel approach where the APs estimate the channel and send back the quantized version of the estimated channel and the quantized version of the received signal to the central processing unit. The Max algorithm and the Bussgang theorem are exploited to model the optimum uniform quantization. The ergodic achievable rates are derived. We show that exploiting microwave wireless backhaul links and using a small number of hits to quantize the estimated channel and the received signal, the performance of limited-backhaul cell-free Massive MIMO closely approaches the performance of cell-free Massive MIMO with perfect backhaul links.

sted, utgiver, år, opplag, sider
IEEE , 2018. s. 624-628
Serie
Conference Record of the Asilomar Conference on Signals Systems and Computers, ISSN 1058-6393
Emneord [en]
Bussgang decomposition; cell-free Massive MIMO; limited-backhaul; Max algorithm
HSV kategori
Identifikatorer
URN: urn:nbn:se:liu:diva-158406DOI: 10.1109/ACSSC.2018.8645433ISI: 000467845100109ISBN: 978-1-5386-9218-9 (digital)OAI: oai:DiVA.org:liu-158406DiVA, id: diva2:1332819
Konferanse
52nd Asilomar Conference on Signals, Systems, and Computers
Merknad

Funding Agencies|H2020-MSCA-RISE-2015 [690750]

Tilgjengelig fra: 2019-06-28 Laget: 2019-06-28 Sist oppdatert: 2019-06-28

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Totalt: 33 treff
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