Maryopi, Dick, Bashar, Manijeh and Burr, Alister Graham orcid.org/0000-0001-6435-3962 (2019) On The Uplink Throughput of Zero-Forcing in Cell-Free Massive MIMO with Coarse Quantization. IEEE Transactions on Vehicular Technology. pp. 1-5. ISSN 0018-9545
Abstract
The recently proposed Cell-Free massive MIMO architecture is studied for the uplink. In contrast to most previous works, joint detection is performed using global CSI. Therefore, we study strategies for transferring CSI to the CPU taking into account the fronthaul capacity which limits CSI quantization. Two strategies for pilot-based CSI acquisition are considered: estimate-and-quantize and quantize-and-estimate. These are analysed using the Bussgang decomposition. For a given quantization constraint for the data and CSI the achievable rate per user with Zero-Forcing is determined. Numerical results show that quantize-and-estimate (the simpler strategy) is similar to or better than estimate-and-quantize at low resolution, especially for 1-bit.
Metadata
Item Type: | Article |
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Authors/Creators: |
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Copyright, Publisher and Additional Information: | (c) 2019 IEEE. Personal use is permitted, but republication/redistribution requires IEEE permission. See http://www.ieee.org/publications_standards/publications/rights/index.html for more information. |
Dates: |
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Institution: | The University of York |
Academic Units: | The University of York > Faculty of Sciences (York) > Electronic Engineering (York) |
Depositing User: | Pure (York) |
Date Deposited: | 07 Jun 2019 09:20 |
Last Modified: | 05 Jan 2025 00:22 |
Published Version: | https://doi.org/10.1109/TVT.2019.2920070 |
Status: | Published online |
Refereed: | Yes |
Identification Number: | 10.1109/TVT.2019.2920070 |
Open Archives Initiative ID (OAI ID): | oai:eprints.whiterose.ac.uk:147065 |