Evaluations of SiC by power difference in im-noma

研究成果: Conference contribution

1 被引用数 (Scopus)

抄録

In most NOMA studies, power allocation is fixed. However, in reality, the optimal power allocation varies depending on the environment in which it is used. Therefore, the goal of this paper is to automatically perform the optimal power allocation in NOMA. SIC is a technique for separating signals using the power difference, and it is known that signals fail to separate if the power difference is small. However, there are few researches to discuss how much power difference is required for successful separation. In addition, IM-NOMA enables flexible communication by adding index modulation to conventional NOMA. In this paper, we investigate the success of signal separation in SIC in terms of BER, SNR, Throughput, Sumrate, and Fairness Index by varying the power ratio in NOMA-based multi-user system. In addition, in comparison of conventional NOMA scheme, IM-NOMA with flexible power allocation were examined in terms of BER, SNR, Throughput, Sumrate, and Fairness Index. It was found that it was easier to maintain communication quality to some extent even for terminals with low power allocation, which are prone to relatively poor communication quality.

本文言語English
ホスト出版物のタイトルProceedings - 12th Wireless Days Conference, WD 2021
出版社IEEE Computer Society
ISBN(電子版)9781665425599
DOI
出版ステータスPublished - 2021
イベント12th Wireless Days Conference, WD 2021 - Paris, France
継続期間: 2021 6月 302021 7月 2

出版物シリーズ

名前IFIP Wireless Days
2021-June
ISSN(印刷版)2156-9711
ISSN(電子版)2156-972X

Conference

Conference12th Wireless Days Conference, WD 2021
国/地域France
CityParis
Period21/6/3021/7/2

ASJC Scopus subject areas

  • コンピュータ ネットワークおよび通信
  • 信号処理
  • 電子工学および電気工学

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