A threshold decision method for MRC in QAM constellation rearrangement

• Sasamori Fumihito

  Faculty of Engineering, Shinshu University

• Sakamoto Naoki

  Faculty of Engineering, Shinshu University

• Takyu Osamu

  Faculty of Engineering, Shinshu University

• Handa Shiro

  Faculty of Engineering, Shinshu University

抄録

OFDM has great advantages such as high spectral efficiency and robustness against multipath fading. Recently, machine-to-machine (M2M) communications and Internet of Things (IoT) command considerable attention, and the OFDM has been added to a physical layer (PHY) modulation in IEEE802.15.4g standards for smart utility networks (SUN). In this letter, we propose a threshold decision method for maximal-ratio diversity combining in the QAM constellation rearrangement to provide high communication quality with limited hardware resources like in the SUN. It is confirmed that the proposed method can outperform the conventional one without constellation rearrangement at low computational complexity.

収録刊行物

• IEICE Communications Express

  IEICE Communications Express 5 (7), 236-241, 2016

  一般社団法人 電子情報通信学会

キーワード

• constellation rearrangement
• threshold decision
• maximal-ratio combining
• repetition coding
• OFDM

詳細情報

• CRID: 1390001205415803264
• NII論文ID: 130005161874
• DOI: 10.1587/comex.2016xbl0079
• ISSN: 21870136
• Web Site: https://www.jstage.jst.go.jp/article/comex/5/7/5_2016XBL0079/_pdf
• 本文言語コード: en
• データソース種別:
  • JaLC
  • Crossref
  • CiNii Articles
• 抄録ライセンスフラグ: 使用不可