Unicast-Multicast Cell-Free Massive MIMO: Gradient-Based Resource Allocation Article Swipe

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Mustafa S. Abbas , Zahra Mobini , Hien Quoc Ngo , Michail Matthaiou ·

YOU? · · 2024 · Open Access · · DOI: https://doi.org/10.48550/arxiv.2410.03506

We consider a cell-free massive multiple-input multiple-output (CF-mMIMO) system with joint unicast and multi-group multicast transmissions. We derive exact closed-form expressions for the downlink achievable spectral efficiency (SE) of both unicast and multicast users. Based on these expressions, we formulate a joint optimization problem of access point (AP) selection and power control subject to quality of service (QoS) requirements of all unicast and multicast users and per-AP maximum transmit power constraint. The challenging formulated problem is transformed into a tractable form and a novel accelerated projected gradient (APG)-based algorithm is developed to solve the optimization problem. Simulation results show that our joint optimization strategy enhances notably the sum SE (SSE) (up to 58%) compared to baseline schemes, while maintaining low complexity.

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Computer Science

Mimo

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Unicast Multicast Computer science Computer network MIMO Resource (disambiguation) Xcast Resource allocation Distributed computing Channel (broadcasting)

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Type: preprint
Language: en
Landing Page: http://arxiv.org/abs/2410.03506
PDF: https://arxiv.org/pdf/2410.03506
OA Status: green
Related Works: 10
OpenAlex ID: https://openalex.org/W4403920390

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OpenAlex ID: https://openalex.org/W4403920390

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DOI: https://doi.org/10.48550/arxiv.2410.03506

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Title: Unicast-Multicast Cell-Free Massive MIMO: Gradient-Based Resource Allocation

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Type: preprint

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Language: en

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Publication year: 2024

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Publication date: 2024-10-04

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Authors: Mustafa S. Abbas, Zahra Mobini, Hien Quoc Ngo, Michail Matthaiou

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Landing page: https://arxiv.org/abs/2410.03506

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PDF URL: https://arxiv.org/pdf/2410.03506

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OA URL: https://arxiv.org/pdf/2410.03506

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Concepts: Unicast, Multicast, Computer science, Computer network, MIMO, Resource (disambiguation), Xcast, Resource allocation, Distributed computing, Channel (broadcasting)

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Cited by: 0

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Related works (count): 10

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