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EVM Analysis of Distributed Massive MIMO with 1-Bit Radio-Over-Fiber Fronthaul

Hu, Anzhong (author)
Hangzhou Dianzi University
Aabel, Lise, 1992 (author)
Telefonaktiebolaget L M Ericsson,Ericsson,Chalmers tekniska högskola,Chalmers University of Technology
Durisi, Giuseppe, 1977 (author)
Chalmers tekniska högskola,Chalmers University of Technology
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Jacobsson, Sven, 1990 (author)
Telefonaktiebolaget L M Ericsson,Ericsson,Chalmers tekniska högskola,Chalmers University of Technology
Coldrey, Mikael, 1972 (author)
Telefonaktiebolaget L M Ericsson,Ericsson
Fager, Christian, 1974 (author)
Chalmers tekniska högskola,Chalmers University of Technology
Studer, Christoph (author)
Eidgenössische Technische Hochschule Zürich (ETH),Swiss Federal Institute of Technology in Zürich (ETH)
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 (creator_code:org_t)
2024
2024
English.
In: IEEE Transactions on Communications. - 0090-6778 .- 1558-0857. ; In Press
Related links:
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https://doi.org/10.1...
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  • Journal article (peer-reviewed)
Abstract Subject headings
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  • We analyze the uplink performance of a distributed massive multiple-input multiple-output (MIMO) architecture in which the remotely located access points (APs) are connected to a central processing unit via a fiber-optical fronthaul carrying a dithered and 1-bit quantized version of the received radio-frequency (RF) signal. The innovative feature of the proposed architecture is that no down-conversion is performed at the APs. This eliminates the need to equip the APs with local oscillators, which may be difficult to synchronize. Under the assumption that a constraint is imposed on the amount of data that can be exchanged across the fiber-optical fronthaul, we investigate the tradeoff between spatial oversampling, defined in terms of the total number of APs, and temporal oversampling, defined in terms of the oversampling factor selected at the central processing unit, to facilitate the recovery of the transmitted signal from 1-bit samples of the RF received signal. Using the so-called error-vector magnitude (EVM) as performance metric, we shed light on the optimal design of the dither signal, and quantify, for a given number of APs, the minimum fronthaul rate required for our proposed distributed massive MIMO architecture to outperform a standard co-located massive MIMO architecture in terms of EVM.

Subject headings

TEKNIK OCH TEKNOLOGIER  -- Elektroteknik och elektronik -- Telekommunikation (hsv//swe)
ENGINEERING AND TECHNOLOGY  -- Electrical Engineering, Electronic Engineering, Information Engineering -- Telecommunications (hsv//eng)
TEKNIK OCH TEKNOLOGIER  -- Elektroteknik och elektronik -- Kommunikationssystem (hsv//swe)
ENGINEERING AND TECHNOLOGY  -- Electrical Engineering, Electronic Engineering, Information Engineering -- Communication Systems (hsv//eng)

Keyword

massive multiple-input multiple-output
Band-pass filters
Quantization (signal)
Uplink
Synchronization
Massive MIMO
1-bit analog-to-digital converters
RF signals
Central Processing Unit
orthogonal frequency-division multiplexing
nonsubtractive dithering
error vector magnitude
Bussgang’s theorem

Publication and Content Type

art (subject category)
ref (subject category)

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