Abstract
In this paper, the appealing features of a dual-polarized intelligent reflecting surface (IRS) are exploited to improve the performance of dual-polarized massive multiple-input multiple-output (MIMO) with non-orthogonal multiple access (NOMA) under imperfect successive interference cancellation (SIC). By considering the downlink of a multi-cluster scenario, the IRSs assist the base station (BS) to multiplex subsets of users in the polarization domain. Our novel strategy alleviates the impact of imperfect SIC and enables users to exploit polarization diversity with near-zero inter-subset interference. Our results show that when the IRSs are large enough, the proposed scheme always outperforms conventional massive MIMO-NOMA and MIMO-OMA systems even if SIC error propagation is present. It is also confirmed that dual-polarized IRSs can make cross-polar transmissions beneficial to the users, allowing them to improve their performance through polarization diversity.
| Original language | English |
|---|---|
| Title of host publication | 2021 IEEE International Conference on Communications Workshops, ICC Workshops 2021 - Proceedings |
| Publisher | Institute of Electrical and Electronics Engineers Inc. |
| ISBN (Electronic) | 9781728194417 |
| DOIs | |
| State | Published - Jun 2021 |
| Externally published | Yes |
Publication series
| Name | 2021 IEEE International Conference on Communications Workshops, ICC Workshops 2021 - Proceedings |
|---|
Bibliographical note
Publisher Copyright:© 2021 IEEE.
Keywords
- Massive MIMO
- Multi-polarization
- NOMA
- intelligent reflecting surfaces
ASJC Scopus subject areas
- Artificial Intelligence
- Computer Networks and Communications
- Hardware and Architecture
- Information Systems and Management
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