Abstract
This paper develops a distributed algorithm for user association of a rate-splitting multiple access (RSMA) network in the millimeter wave (mmWave) directional beamforming environment. In the RSMA network, hybrid multiple access (HMA) is employed based on beamforming techniques with mmWave transmission so that non-orthogonal and orthogonal multiple access users are allowed to coexist, but all users are not necessarily accessible to each other. Thus, a basic NOMA pairing principle of grouping the largest rate-gap users may not be the best strategy for the user-resource allocation, and the identification of the optimal pairing gives rise to a significant computation complexity. To handle this, a novel distributed solution is developed based on the message-passing framework among locally accessible users for the objective of maximizing the global network sum-throughput utility. To provide the optimality and the convergence of the developed algorithm, a theoretical analysis is conducted along with numerical results evidencing the superiority over existing schemes.
Original language | English |
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Title of host publication | 2022 IEEE International Conference on Communications Workshops, ICC Workshops 2022 |
Publisher | Institute of Electrical and Electronics Engineers Inc. |
Pages | 610-615 |
Number of pages | 6 |
ISBN (Electronic) | 9781665426718 |
DOIs | |
Publication status | Published - 2022 |
Event | 2022 IEEE International Conference on Communications Workshops, ICC Workshops 2022 - Seoul, Korea, Republic of Duration: 2022 May 16 → 2022 May 20 |
Publication series
Name | 2022 IEEE International Conference on Communications Workshops, ICC Workshops 2022 |
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Conference
Conference | 2022 IEEE International Conference on Communications Workshops, ICC Workshops 2022 |
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Country/Territory | Korea, Republic of |
City | Seoul |
Period | 22/5/16 → 22/5/20 |
Bibliographical note
Funding Information:ACKNOWLEDGMENT This work is supported in part by the NRF grant funded by the Korea government Ministry of Science and ICT (MSIT) under Grant 2019R1A2C1084855 and in part by Institute of Information & communications Technology Planning & Evaluation (IITP) grant funded by the MSIT (No. 2021-0-00467, Intelligent 6G Wireless Access System).
Publisher Copyright:
© 2022 IEEE.
ASJC Scopus subject areas
- Artificial Intelligence
- Computer Networks and Communications
- Signal Processing
- Control and Optimization