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On the Effects of Channel Aging in D2D Two-Way Relaying with Space-Constrained Massive MIMO

Qian, J; Masouros, C; (2021) On the Effects of Channel Aging in D2D Two-Way Relaying with Space-Constrained Massive MIMO. In: 2020 IEEE Globecom Workshops (GC Wkshps). IEEE Green open access

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Abstract

This paper studies the spectral efficiency (SE) of a space-constrained multi-pair two-way massive multiple-input multiple-output (MIMO) decode-and-forward (DF) relay system with channel aging for device-to-device (D2D) communications in the Internet of Things (IoT) environments. Maximum ratio combininy-Maximum ratio transmission (MRC/MRT) processing is employed at the relay and imperfect channel estimation is assumed. With the consideration of the spatial correlation due to insufficiently spaced antennas, and the time correlation due to channel aging, we study the closed-form large-scale approximations of the SE performance. Our analytical studies and performance results demonstrate that a degree of both spatial correlation due to antenna proximity, and time correlation due to channel aging can be tolerated in the massive MIMO regime without significant performance degradation.

Type: Proceedings paper
Title: On the Effects of Channel Aging in D2D Two-Way Relaying with Space-Constrained Massive MIMO
Event: 2020 IEEE Globecom Workshops
ISBN-13: 9781728173078
Open access status: An open access version is available from UCL Discovery
DOI: 10.1109/GCWkshps50303.2020.9367524
Publisher version: https://doi.org/10.1109/GCWkshps50303.2020.9367524
Language: English
Additional information: This version is the author accepted manuscript. For information on re-use, please refer to the publisher’s terms and conditions.
UCL classification: UCL
UCL > Provost and Vice Provost Offices
UCL > Provost and Vice Provost Offices > UCL BEAMS
UCL > Provost and Vice Provost Offices > UCL BEAMS > Faculty of Engineering Science
UCL > Provost and Vice Provost Offices > UCL BEAMS > Faculty of Engineering Science > Dept of Electronic and Electrical Eng
URI: https://discovery.ucl.ac.uk/id/eprint/10125542
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