Cognitive radio system for high efficiency of frequency resources according to time-space wireless environment

2018 Fiscal Year Final Research Report

• Project/Area Number: 15K18070
• Research Category: Grant-in-Aid for Young Scientists (B)
• Allocation Type: Multi-year Fund
• Research Field: Communication/Network engineering
• Research Institution: Fukuoka University
• Principal Investigator: Ohta Mai 福岡大学, 工学部, 助教 (20708523)
• Research Collaborator: Taromaru Makoto
• Project Period (FY): 2015-04-01 – 2019-03-31
• Keywords: コグニティブ無線

Outline of Final Research Achievements

The cognitive radio system has been promising as a formula because the scarcity of the wireless resources are forcing all wireless users. In our study, we propose a method for discriminating between a radio wave which is used for communication and a microwave which is used for object except communication by employing an amplitude probability distribution (APD). The proposed method can find a useful wireless resources which is not used in conventional cognitive radio system. In measurement experiments, the received power is measured in the cases of the wireless LAN and microwave oven, respectively. Then, we confirm that the system can be discriminated by using the APD which is derived from easy calculation.

Free Research Field

無線通信

Academic Significance and Societal Importance of the Research Achievements

無線システムの普及拡大と技術の進歩に伴い、周波数資源の枯渇が世界中で問題になっている。本研究では、新しい周波数資源の開拓に寄与する手法として提案法の基礎評価から行ってきた。本研究では、提案法により従来は利用していなかった潜在的な周波数資源の新規開拓への重要な研究といえ、その社会的意義や学術的意義が高い研究成果が得られている。