Alazwary, K, Qidan, AA, El-Gorashi, T et al. (1 more author) (2022) Optimizing Rate Splitting in Laser-based Optical Wireless Networks. In: 2022 IEEE International Conference on Communications Workshops (ICC Workshops). 2022 IEEE International Conference on Communications Workshops (ICC Workshops), 16-20 May 2022, Seoul, Korea. IEEE , pp. 463-468. ISBN 978-1-6654-2672-5
Abstract
Optical wireless communication (OWC) is a promising technology that has the potential to provide Tb/s aggregate rates. In this paper, interference management is studied in a Laser-based optical wireless network where vertical-cavity surface-emitting (VCSEL) lasers are used for data transmission. In particular, rate splitting (RS) and hierarchical rate splitting (HRS) are proposed to align multi-user interference, while maximizing the multiplexing gain of the network. Basically, RS serves multiple users simultaneously by splitting a message of a user into common and private messages, each message with a certain level of power, while on the other side users decode their messages following a specific methodology. The performance of the conventional RS scheme is limited in high density wireless networks. Therefore, the HRS scheme is developed aiming to achieve high rates where users are divided into multiple groups, and a new message called outer common message is used for managing inter-group interference. We formulate an optimization problem that addresses power allocation among the messages of the HRS scheme to further enhance the performance of the network. The results show that the proposed approach provides high achievable rates compared with the conventional RS and HRS schemes in different scenarios.
Metadata
Item Type: | Proceedings Paper |
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Authors/Creators: |
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Copyright, Publisher and Additional Information: | © 2022 IEEE. Personal use of this material is permitted. Permission from IEEE must be obtained for all other uses, in any current or future media, including reprinting/republishing this material for advertising or promotional purposes, creating new collective works, for resale or redistribution to servers or lists, or reuse of any copyrighted component of this work in other works. |
Dates: |
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Institution: | The University of Leeds |
Academic Units: | The University of Leeds > Faculty of Engineering & Physical Sciences (Leeds) > School of Electronic & Electrical Engineering (Leeds) > Institute of Communication & Power Networks (Leeds) |
Funding Information: | Funder Grant number EPSRC (Engineering and Physical Sciences Research Council) EP/S016570/1 |
Depositing User: | Symplectic Publications |
Date Deposited: | 26 Sep 2022 10:27 |
Last Modified: | 27 Sep 2022 16:26 |
Status: | Published |
Publisher: | IEEE |
Identification Number: | 10.1109/iccworkshops53468.2022.9814503 |
Open Archives Initiative ID (OAI ID): | oai:eprints.whiterose.ac.uk:191167 |