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AI-assisted MAC for reconfigurable intelligent surface-aided wireless networks: challenges and opportunities

AI-assisted MAC for reconfigurable intelligent surface-aided wireless networks: challenges and opportunities
AI-assisted MAC for reconfigurable intelligent surface-aided wireless networks: challenges and opportunities
Recently, significant research attention has been devoted to the study of reconfigurable intelligent surfaces (RISs), which are capable of reconfiguring the wireless propagation environment by exploiting the unique properties of metamaterialsbased integrated large arrays of inexpensive antennas. Existing research demonstrates that RISs significantly improve the physical layer performance, including the wireless coverage, achievable data rate and energy efficiency. However, the medium access control (MAC) of multiple users accessing an RIS-enabled channel is still in its infancy, while many open issues remain to be addressed. In this article, we present four typical RIS-aided multi-user scenarios with special emphasis on the MAC schemes. We then propose and elaborate upon centralized, distributed and hybrid artificial-intelligence (AI)-assisted MAC architectures in RIS-aided multi-user communications systems. Finally, we discuss some challenges, perspectives and potential applications of RISs as they are related to MAC design.
0163-6804
1-7
Cao, Xuelin
5f8520a8-3869-476c-9a07-8edff001e305
Yang, Bo
25f7291b-230c-4812-98f7-8d617d6fa0f7
Huang, Chongwen
cb95630b-82c2-45c1-959e-b636774b8c61
Yuen, Chau
1b26b32e-5822-4bf8-b39b-2ea02385037d
Renzo, Marco di
950fb927-43b2-4b8f-b387-9b0a2e669f15
Han, Zhu
ddd5d684-94b4-4547-8635-81a7371dd4be
Niyato, Dusit
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Poor, H. Vincent
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Hanzo, Lajos
66e7266f-3066-4fc0-8391-e000acce71a1
Cao, Xuelin
5f8520a8-3869-476c-9a07-8edff001e305
Yang, Bo
25f7291b-230c-4812-98f7-8d617d6fa0f7
Huang, Chongwen
cb95630b-82c2-45c1-959e-b636774b8c61
Yuen, Chau
1b26b32e-5822-4bf8-b39b-2ea02385037d
Renzo, Marco di
950fb927-43b2-4b8f-b387-9b0a2e669f15
Han, Zhu
ddd5d684-94b4-4547-8635-81a7371dd4be
Niyato, Dusit
60fa6dee-78d8-4088-b05c-6d108645ac0c
Poor, H. Vincent
2ce6442b-62db-47b3-8d8e-484e7fad51af
Hanzo, Lajos
66e7266f-3066-4fc0-8391-e000acce71a1

Cao, Xuelin, Yang, Bo, Huang, Chongwen, Yuen, Chau, Renzo, Marco di, Han, Zhu, Niyato, Dusit, Poor, H. Vincent and Hanzo, Lajos (2021) AI-assisted MAC for reconfigurable intelligent surface-aided wireless networks: challenges and opportunities. IEEE Communications Magazine, 1-7. (In Press)

Record type: Article

Abstract

Recently, significant research attention has been devoted to the study of reconfigurable intelligent surfaces (RISs), which are capable of reconfiguring the wireless propagation environment by exploiting the unique properties of metamaterialsbased integrated large arrays of inexpensive antennas. Existing research demonstrates that RISs significantly improve the physical layer performance, including the wireless coverage, achievable data rate and energy efficiency. However, the medium access control (MAC) of multiple users accessing an RIS-enabled channel is still in its infancy, while many open issues remain to be addressed. In this article, we present four typical RIS-aided multi-user scenarios with special emphasis on the MAC schemes. We then propose and elaborate upon centralized, distributed and hybrid artificial-intelligence (AI)-assisted MAC architectures in RIS-aided multi-user communications systems. Finally, we discuss some challenges, perspectives and potential applications of RISs as they are related to MAC design.

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Accepted/In Press date: 1 May 2021

Identifiers

Local EPrints ID: 448945
URI: http://eprints.soton.ac.uk/id/eprint/448945
ISSN: 0163-6804
PURE UUID: fdec6db2-c631-4d23-9779-fc6f7337b57d
ORCID for Lajos Hanzo: ORCID iD orcid.org/0000-0002-2636-5214

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Date deposited: 11 May 2021 17:10
Last modified: 12 May 2021 01:34

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Contributors

Author: Xuelin Cao
Author: Bo Yang
Author: Chongwen Huang
Author: Chau Yuen
Author: Marco di Renzo
Author: Zhu Han
Author: Dusit Niyato
Author: H. Vincent Poor
Author: Lajos Hanzo ORCID iD

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