Multi-layer Constellation based Is-OWC employing NOMA

Wataru Tachikawa, Ajgaonkar Swarali Ashish, Kazutoshi Yoshii, Jiang Liu, Shigeru Shimamoto

研究成果: Conference contribution

抄録

Inter-Satellite Optical Wireless Communication (Is-OWC) is regarded as the best choice for satellite communication because of its large throughput, low transmission power and high immunity to interference. To increase the availability of Is-OWC, it is required to implement a communication scheme that realizes lower latency and handles more traffic. In this paper, we propose a new Is-OWC system that uses multi-layer satellite constellation that applies uplink Non-Orthogonal Multiple Access (NOMA) to achieve delay suppression and increased throughput. In our proposed scheme, to distribute packets and reduce queue delay in each satellite, each communication path is adapted to the distance between the terrestrial transmitter and receiver. Simulation results validate the performance of our NOMA model is better than that of the conventional OMA model. Furthermore, the results showed that the BER of our model is improved by introducing the original algorithm to optimize the transmission power and the allocated sub-band of each satellite for the NOMA transmission. As a result, comparison of the latency between the proposed model using LEO and MEO satellites and the conventional model using only LEO satellites, the proposed model realizes delay suppression. The difference between the two models becomes more significant as the number of sessions in the entire network increases.

本文言語English
ホスト出版物のタイトル2022 IEEE International Conference on Space Optical Systems and Applications, ICSOS 2022
出版社Institute of Electrical and Electronics Engineers Inc.
ページ100-106
ページ数7
ISBN(電子版)9781665434393
DOI
出版ステータスPublished - 2022
イベント2022 IEEE International Conference on Space Optical Systems and Applications, ICSOS 2022 - Kyoto City, Japan
継続期間: 2022 3月 282022 3月 31

出版物シリーズ

名前2022 IEEE International Conference on Space Optical Systems and Applications, ICSOS 2022

Conference

Conference2022 IEEE International Conference on Space Optical Systems and Applications, ICSOS 2022
国/地域Japan
CityKyoto City
Period22/3/2822/3/31

ASJC Scopus subject areas

  • 信号処理
  • 原子分子物理学および光学
  • コンピュータ ネットワークおよび通信

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