Fiber-Wireless Network for Ultra-Dense Access Environment

• Project/Area Number: 15H05307
• Research Category: Grant-in-Aid for Young Scientists (A)
• Allocation Type: Single-year Grants
• Research Field: Information network
• Research Institution: Tohoku University
• Principal Investigator: NISHIYAMA Hiroki 東北大学, 工学研究科, 教授 (90532169)
• Project Period (FY): 2015-04-01 – 2019-03-31
• Project Status: Completed (Fiscal Year 2019)
• Budget Amount: ¥23,660,000 (Direct Cost: ¥18,200,000、Indirect Cost: ¥5,460,000); Fiscal Year 2018: ¥7,410,000 (Direct Cost: ¥5,700,000、Indirect Cost: ¥1,710,000); Fiscal Year 2017: ¥9,360,000 (Direct Cost: ¥7,200,000、Indirect Cost: ¥2,160,000); Fiscal Year 2016: ¥3,900,000 (Direct Cost: ¥3,000,000、Indirect Cost: ¥900,000); Fiscal Year 2015: ¥2,990,000 (Direct Cost: ¥2,300,000、Indirect Cost: ¥690,000)
• Keywords: Fiber-Wireless / wireless network / optical network / モバイルネットワーク / 次世代ネットワーク / ネットワーク融合 / 光通信 / 無線通信

Outline of Final Research Achievements

In this research, we have studied the power saving technique for next generation wireless access networks. In the next generation wireless access networks, the power consumption in both wireless and wired parts increases due to high traffic load generated by the large number of communication terminals and the wide variety of communication demands. To cope with this issue, we have proposed the power saving techniques in both parts, respectively, and succeeded in reducing the power consumption in the entire system.

Academic Significance and Societal Importance of the Research Achievements

本研究においては，次世代無線アクセスネットワークにおける省電力化手法を確立した．これにより，増大し続けるネットワークの電力的な負荷を低減することが可能となることが期待されるほか，ネットワークの一部だけではなく，無線部分と光部分を含めたアクセスネットワーク全体の省電力化に，一定の貢献を果たすことが期待される．

Research Products

• [Journal Article] An Internet of Things Traffic-Based Power Saving Scheme in Cloud-Radio Access Network (2018)
  • Author(s): Keisuke Miyanabe, Tiago Gama Rodrigues, Yunseong Lee, Hiroki Nishiyama, and Nei Kato
  • Journal Title: IEEE Internet of Things Journal Volume: 印刷中 Issue: 2 Pages: 3087-3096
  • DOI: 10.1109/jiot.2018.2878884
  • Peer Reviewed / Open Access / Int'l Joint Research
• [Journal Article] QoE-Guaranteed and Power-Efficient Network Operation for Cloud Radio Access Network with Power over Fiber (2016)
  • Author(s): Katsuya Suto, Keisuke Miyanabe, Hiroki Nishiyama, Nei Kato, Hirotaka Ujikawa, and Ken-Ichi Suzuki
  • Journal Title: IEEE Transactions on Computational Social Systems Volume: 2 Issue: 4 Pages: 127-136
  • DOI: 10.1109/tcss.2016.2518208
  • Peer Reviewed
• [Presentation] A Study on Power Consumption of Cloud-Radio Access Network (2017)
  • Author(s): Yunseong Lee, Hiroki Nishiyama, and Nei Kato
  • Organizer: 電子情報通信学会技術研究報告
• [Presentation] C-RANにおけるトラヒックに応じた柔軟なネットワークリソース割り当てに関する検討 (2017)
  • Author(s): 宮鍋慶介, 西山大樹, 加藤寧, 山田崇史, 鈴木謙一
  • Organizer: 電子情報通信学会技術研究報告
• [Presentation] A Study on the Power Saving Technology in Cloud Radio Access Network with Power over Fiber (2017)
  • Author(s): Yunseong Lee, Hiroki Nishiyama, and Nei Kato
  • Organizer: 2017年電子情報通信学会通信総合大会
• [Presentation] C-RANにおけるユーザー要求を考慮したシステム構築に関する初期検討 (2017)
  • Author(s): 宮鍋慶介, 西山大樹, 加藤寧
  • Organizer: 2017年電子情報通信学会通信総合大会
• [Presentation] 無線センサネットワークにおける省電力技術 (2016)
  • Author(s): 李允成、西山大樹、加藤寧
  • Organizer: 電子情報通信学会2016年総合大会
  • Place of Presentation: 九州大学 伊都キャンパス（福岡市）
  • Year and Date: 2016-03-18
• [Presentation] A Study on the Power Saving Technology of Networks in Smart Factory (2016)
  • Author(s): Yunseong Lee, Hiroki Nishiyama, Nei Kato, Hirotaka Ujikawa, and Ken-Ichi Suzuki
  • Organizer: 2016年電子情報通信学会通信ソサイエティ大会