Toward Advanced Communications Systems with High Bandwidth Efficiency and High Energy Efficiency

2014 Fiscal Year Final Research Report

• Project/Area Number: 23686058
• Research Category: Grant-in-Aid for Young Scientists (A)
• Allocation Type: Single-year Grants
• Research Field: Communication/Network engineering
• Research Institution: Yokohama National University
• Principal Investigator: OCHIAI HIDEKI 横浜国立大学, 工学(系)研究科(研究院), 准教授 (20334576)
• Research Collaborator: SONG Jiajia ; TANAHASHI Makoto ; YOSHIZAWA Ryota ; YODA Daiki ; LEE Taewoo
• Project Period (FY): 2011-04-01 – 2015-03-31
• Keywords: 通信システム / 変調方式 / 電力効率 / OFDM / パワーアンプ

Outline of Final Research Achievements

In view of growing interest toward high speed yet green information and communication technology (ICT), this research has targeted realizatiion of advanced communications systems that can simultaneously achieve high energy efficiency and high bandwidth efficiency. Our major contributions include: 1) foundation of theory that reveals trade-off between power efficiency, and bandwidth efficiency for given acceptable nonlinear distortion considering power amplifier efficiency of transmitter circuit; and 2) development and evaluation of wireless communications systems that can achieve better trade-off in terms of power and bandwidth efficiency.

Free Research Field

通信工学