One-layer rate-splitting multiple access with benefits over power-domain NOMA in indoor multi-cell visible light communication networks

Siyu Tao, Hongyi Yu, Qing Li, Yanqun Tang, Di Zhang

研究成果: Conference contribution

抄録

A conventional approach to tackle the inter-cell interference in multi-cell visible light communication (VLC) networks is based on non-orthogonal multiple access (NOMA) by allowing one user to fully decode the message of another user. Due to the ability of partially decoding the interference and partially treating it as noise, rate-splitting multiple access (RSMA) has been regarded as a more flexible interference management scheme that generalizes and outperforms NOMA. Motivated by the benefits of RSMA and its infancy in multi-cell VLC networks, this paper firstly introduces 1-layer RSMA into multi-cell VLC networks by considering the Lambertian radiation model of indoor visible-light channels. Afterwards, we develop a linear precoding containing 1-layer RSMA-VLC to achieve spectral efficiency having constrained the non-linear effect of a light-emitting diode (LED). Subsequently, the transmitted power allocation is constrained by the optical signal power. Finally, we perform a comparison between 1-layer RSMA and NOMA based on multi-cell VLC networks. Simulation results show the effectiveness of our proposal in system spectral efficiency and VLC constraints. Furthermore, key features guaranteeing the merits of 1-layer RSMA are analysed with respect to the number of users, user locations, and lighting deployment.

本文言語English
ホスト出版物のタイトル2020 IEEE International Conference on Communications Workshops, ICC Workshops 2020 - Proceedings
出版社Institute of Electrical and Electronics Engineers Inc.
ISBN(電子版)9781728174402
DOI
出版ステータスPublished - 2020 6
外部発表はい
イベント2020 IEEE International Conference on Communications Workshops, ICC Workshops 2020 - Dublin, Ireland
継続期間: 2020 6 72020 6 11

出版物シリーズ

名前2020 IEEE International Conference on Communications Workshops, ICC Workshops 2020 - Proceedings

Conference

Conference2020 IEEE International Conference on Communications Workshops, ICC Workshops 2020
国/地域Ireland
CityDublin
Period20/6/720/6/11

ASJC Scopus subject areas

  • 人工知能
  • コンピュータ ネットワークおよび通信
  • 信号処理
  • 情報システムおよび情報管理
  • 制御と最適化

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