Energy Efficient Artificial Noise And Artificial Fast Fading Generation Schemes for MIMO transmission Systems

• Project/Area Number: 15K06079
• Research Category: Grant-in-Aid for Scientific Research (C)
• Allocation Type: Multi-year Fund
• Section: 一般
• Research Field: Communication/Network engineering
• Research Institution: Chiba Institute of Technology
• Principal Investigator: SABA Takahiko 千葉工業大学, 情報科学部, 教授 (60293742)
• Project Period (FY): 2015-04-01 – 2019-03-31
• Project Status: Completed (Fiscal Year 2018)
• Budget Amount: ¥4,810,000 (Direct Cost: ¥3,700,000、Indirect Cost: ¥1,110,000); Fiscal Year 2017: ¥1,430,000 (Direct Cost: ¥1,100,000、Indirect Cost: ¥330,000); Fiscal Year 2016: ¥1,690,000 (Direct Cost: ¥1,300,000、Indirect Cost: ¥390,000); Fiscal Year 2015: ¥1,690,000 (Direct Cost: ¥1,300,000、Indirect Cost: ¥390,000)
• Keywords: 物理層セキュリティ / 人工雑音 / 人工高速フェージング / MIMO / プリコーディング / OFDM

Outline of Final Research Achievements

In order to improve the secrecy of data in wireless communications, the use of physical layer security, which exploits the characteristics of physical radio channels has attracted attention. In this research, we focus on two methods: artificial noise and artificial fast fading, which can be implemented relatively easily and can deal with passive eavesdroppers. The purpose of this paper is to develop methods to improve energy efficiency in multiple-input multiple-output (MIMO) transmission, which is adopted in many recent wireless communications standards. Several methods have been developed in accordance with the transmission schemes, and it has been clarified that highly secure communications can be realized while improving the energy efficiency.

Academic Significance and Societal Importance of the Research Achievements

今後益々普及するであろうセンサデバイスやIoTデバイスでは，バイタルデータ等の個人情報や機密性の高いデータの通信がより頻繁に行われるようになる．それらの情報を保護するためには，データを秘匿する通信が必須である．本研究で扱う物理層セキュリティは，従来からあるデータの暗号化といった方式と併用することで，データの秘匿性を劇的に高める手法である．中でも人工雑音や人工高速フェージングは電波を発しない受動盗聴局にも対応可能であり，本研究により，これらの手法を用いた際のエネルギー効率の向上，さらに秘密レート向上の実現性が明らかになれば，データの秘匿が必要な通信にとって非常に有用である．

Research Products

• [Presentation] A Physical Layer Security Scheme Employing Imaginary Receiver for Multiuser MIMO-OFDM Systems (2017)
  • Author(s): Yuki Tanigawa, Yu Kozai, and Takahiko Saba
  • Organizer: IEEE International Conference on Communications (ICC)
  • Place of Presentation: Paris, France
  • Year and Date: 2017-05-21
  • Int'l Joint Research
• [Presentation] A physical layer security scheme employing imaginary receiver for multiuser MIMO-OFDM systems (2017)
  • Author(s): Yuki Tanigawa, Yu Kozai, and Takahiko Saba
  • Organizer: IEEE International Conference on Communications (ICC2017)
  • Int'l Joint Research
• [Presentation] Tomlinson-Harashima precoding for physical layer security in MIMO-OFDM systems (2017)
  • Author(s): Satoru Nakajima and Takahiko Saba
  • Organizer: Asia-Pacific Conference on Communications (APCC2017)
  • Int'l Joint Research
• [Presentation] An artificial fast fading generation scheme for physical layer security of MIMO-OFDM systems (2015)
  • Author(s): Yu Kozai and Takahiko Saba
  • Organizer: International Conference on Signal Processing and Communication Systems (ICSPCS 2015)
  • Place of Presentation: Cairns, Australia
  • Year and Date: 2015-12-14
  • Int'l Joint Research
• [Presentation] Energy efficient artificial fast fading for MISO-OFDM systems (2015)
  • Author(s): Tomoki Akitaya and Takahiko Saba
  • Organizer: IEEE 2015 Global Telecommunications Conference (GLOBECOM 2015)
  • Place of Presentation: San Diego, U.S.A.
  • Year and Date: 2015-12-06
  • Int'l Joint Research
• [Presentation] Energy-efficient artificial noise generation scheme for secure multiuser MIMO-OFDM communications (2015)
  • Author(s): Yudai Hosaka and Takahiko Saba
  • Organizer: 12th IEEE Asia Pacific Wireless Communication Symposium (APWCS 2015)
  • Place of Presentation: Nanyang Technological University, Singapore
  • Year and Date: 2015-08-19
  • Int'l Joint Research