Research on robust SC-FDE transmission over time selective fading channels

• Project/Area Number: 25420389
• Research Category: Grant-in-Aid for Scientific Research (C)
• Allocation Type: Multi-year Fund
• Section: 一般
• Research Field: Communication/Network engineering
• Research Institution: Waseda University
• Principal Investigator: MAEHARA Fumiaki 早稲田大学, 理工学術院, 教授 (80329101)
• Project Period (FY): 2013-04-01 – 2016-03-31
• Project Status: Completed (Fiscal Year 2015)
• Budget Amount: ¥4,810,000 (Direct Cost: ¥3,700,000、Indirect Cost: ¥1,110,000); Fiscal Year 2015: ¥1,690,000 (Direct Cost: ¥1,300,000、Indirect Cost: ¥390,000); Fiscal Year 2014: ¥1,560,000 (Direct Cost: ¥1,200,000、Indirect Cost: ¥360,000); Fiscal Year 2013: ¥1,560,000 (Direct Cost: ¥1,200,000、Indirect Cost: ¥360,000)
• Keywords: 移動通信 / シングルキャリヤ周波数領域等化 / 時間選択性フェージング / 判定帰還型伝搬路推定 / 雑音強調

Outline of Final Research Achievements

This research proposes a single carrier transmission with frequency domain equalization (SC-FDE) employing decision feedback channel estimation to cope with both frequency selective fading and time selective fading which are two main problems in realizing high speed mobile communications systems. The feature of the proposed approach is to theoretically derive the effect of time selective fading by using the terminal speed and to provide the appropriate forgetting factor according to the actual channel condition composed of thermal noise and time selective fading. The numerical results obtained by computer simulations showed that the proposed scheme determines the appropriate forgetting factor and provides good performance regardless of terminal mobility, which further improves spectral efficiency of uplink mobile communications with various degrees of terminal mobility.

Research Products

• [Journal Article] 理論ビット誤り率を用いたMIMO-OFDMシンボル間干渉抑圧法 (2015)
  • Author(s): 中村 瞬, 前原文明
  • Journal Title: 電子情報通信学会論文誌B Volume: Vol. J98-B, No. 11 Pages: 1233-1237
  • Peer Reviewed / Acknowledgement Compliant
• [Journal Article] Decision Feedback Channel Estimation Scheme Using Terminal Speed for Single-Carrier Frequency-Domain Equalization (2015)
  • Author(s): Hirotaka Mihara, Fumiaki Maehara
  • Journal Title: Proc. 2015 IEEE 81st Vehicular Technology Conference (VTC2015-Spring) Volume: TBD
  • Peer Reviewed / Acknowledgement Compliant
• [Presentation] 理論ビット誤り率を用いたMIMO-OFDMシンボル間干渉抑圧に関する検討 (2015)
  • Author(s): 中村瞬，前原文明
  • Organizer: 電子情報通信学会技術研究報告, vol. 115, no. 55, WBS2015-7, pp. 33-36
  • Place of Presentation: 東京都市大学
  • Year and Date: 2015-05-28
• [Presentation] SC-FDEにおける端末移動性を考慮した判定帰還型伝搬路推定法に関する一検討 (2015)
  • Author(s): 三原寛高，前原文明
  • Organizer: 信学技報, vol. 115, no. 2, RCS2015-2, pp. 7-12
  • Place of Presentation: 湯布院・湯布郷館
  • Year and Date: 2015-04-16
• [Presentation] SC-FDEへの判定帰還型伝搬路推定法の適用に関する検討
  • Author(s): 三原寛高・長田 弦・竹渕翔矢・前原文明
  • Organizer: 電子情報通信学会 総合大会 B-5-53
  • Place of Presentation: 新潟大学