University of Oulu

I. Atzeni, B. Gouda and A. Tölli, "Distributed Joint Receiver Design for Uplink Cell-Free Massive MIMO," 2020 IEEE International Conference on Communications Workshops (ICC Workshops), Dublin, Ireland, 2020, pp. 1-6, doi: 10.1109/ICCWorkshops49005.2020.9145430

Distributed joint receiver design for uplink cell-free massive MIMO

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Author: Atzeni, Italo1; Gouda, Bikshapathi1; Tölli, Antti1
Organizations: 1Centre for Wireless Communications, University of Oulu, Finland
Format: article
Version: accepted version
Access: open
Online Access: PDF Full Text (PDF, 0.2 MB)
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Language: English
Published: Institute of Electrical and Electronics Engineers, 2020
Publish Date: 2020-12-03


The majority of works on cell-free massive multiple-input multiple-output (MIMO) adopt uncoordinated transmit/receive strategies at the base stations (BSs) to avoid extensive channel state information (CSI) exchange via backhaul signaling. However, significant performance gains can be achieved by allowing coordination among the BSs. This paper proposes a distributed joint receiver design for uplink cell-free massive MIMO based on over-the air (OTA) signaling, which entirely eliminates the need for backhaul signaling for CSI exchange. The proposed scheme is flexible and scalable, as the amount of OTA signaling does not grow with the number of BSs or user equipments. Numerical results show fast convergence and remarkable performance gains with respect to uncoordinated joint reception.

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Series: IEEE/CIC International Conference on Communications in China - Workshops
ISSN: 2474-9133
ISSN-E: 2474-9141
ISSN-L: 2474-9133
ISBN: 978-1-7281-7440-2
ISBN Print: 978-1-7281-7441-9
Pages: 1 - 6
Article number: 9145430
DOI: 10.1109/ICCWorkshops49005.2020.9145430
Host publication: 2020 IEEE International Conference on Communications Workshops, ICC Workshops 2020
Conference: IEEE International Conference on Communications Workshops
Type of Publication: A4 Article in conference proceedings
Field of Science: 213 Electronic, automation and communications engineering, electronics
Funding: This work was supported by the Academy of Finland under grant no. 318927 (6Genesis Flagship).
Academy of Finland Grant Number: 318927
Detailed Information: 318927 (Academy of Finland Funding decision)
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