Department of Information and Communication Systems

As of March 2018

Research Area : Information Transter Laboratory

(URL:http://www.ec.okayama-u.ac.jp/~trans/)

Nobumoto YAMANE, Associate Professor

Research Themes:

  • Medical Image Processing and Diagnostic Imaging
  • Earth Quake Prediction
  • Multi-media Signal Processing and Compression

Representative Publication :

  • Hirofumi Inoue, Nobumoto Yamane and Hisao Oka “An Automatic Visual Inspection Method Based on Supervised Machine Learning for Rapid On-Site Evaluation in EUS-FNA,” IEEE Society of Instruction and Control Engineers (CISE 2014), September 2014.

Research Area : Information System Design Laboratory

(URL:http://www.ec.okayama-u.ac.jp/~infsys/index_en.html)

Hiroto KAGOTANI, Senior Assistant Professor

Research Themes:

  • Design Methods of Asynchronous Processors
  • Reconfigurable Computer Architecture
  • General Purpose Computing on GPU
  • Secure Cryptographic Hardware Implementation

Representative Publication :

  • Hiroto Kagotani, Yuji Sugiyama, Takuya Okamoto “An Efficient Algorithm to Determine Equivalence of Pipelined Dependency Graphs for Their Simplification,” IEICE Transactions on Information and Systems, Vol. J100-D, No. 6, pp. 616-626, June 2017.

Research Area : Network Systems Laboratory

(URL:http://www.ec.okayama-u.ac.jp/~net/index-en.html)

Yukinobu FUKUSHIMA, Associate Professor

Research Themes:

  • Highly Distributed Cloud Computing Environment
  • Design of Virtual Networks
  • Technologies to Improve the Performance of Internet Communication Protocols
  • Design of Optical Networks

Representative Publication :

  • Yukinobu Fukushima, Wenjie Chen and Tokumi Yokohira, “A Trail Multi-Splitting Method for Throughput Improvement in Light Trail Networks,” Photonic Network Communications, Vol. 30, pp. 178-189, May 2015.
  • Shigeyuki Osada, Ryo Miyayama, Yukinobu. Fukushima, and Tokumi Yokohira, “TCP Incast Avoidance Based on Connection Serialization in Data Center Networks,” International Journal of Computer Networks and Communications, Vol. 8, pp. 83-102, July 2016.

Research Area : Mobile Communications Laboratory

(URL:http://www.ec.okayama-u.ac.jp/~mob/index_eng.htm)

Kazuhiro UEHARA, Professor

Shigeru TOMISATO, Associate Professor

Research Themes:

  • LED Visible Light Wireless Communications
  • Radio Propagation Modeling for Transmission Paths between Underground and Ground
  • Non-Linear Distortion Noise Reduction in Multi-Band OFDM Transmission
  • Signal Separation Method for Sensor Terminals by Accumulation Batch Signal Processing

Representative Publication :

  • Takahiro Chikamori, Shigeru Tomisato, Satoshi Denno, Kazuhiro Uehara, “Transmission Quality Improvement by LED Back-off Optimization for Visible Light Wireless Communications,” Proc. of the 20th International Symposium on Wireless Personal Multimedia Communications (WPMC 2017), pp. 228-232, Dec. 2017.

Research Area : Information Security Laboratory

(URL:http://isec.ec.okayama-u.ac.jp/)

Yasuyuki NOGAMI, Professor

Takuya KUSAKA, Senior Assistant Professor

Research Themes:

  • Elliptic Curve Cryptography
  • Error Correction Code
  • Lattice-Based Cryptography
  • Discrete Mathematics
  • IoT Security

Representative Publication :

  • Takuya Kusaka, Sho Joichi, Ken Ikuta, Md. Al-Amin Khandaker,, Yasuyuki Nogami, Satoshi Uehara, Nariyoshi Yamai, and Sylvain Duquesne, “Solving 114-bit ECDLP for a Barreto-Naehrig Curve,” The 20th Annual International Conference on Information Security and Cryptology (ICISC2017), 2017.

Research Area : Multimedia Radio Systems Laboratory

(URL:http://www.ec.okayama-u.ac.jp/~wcs/)

Satoshi DENNO, Professor

Yafei HOU, Assistant Professor

Research Themes:

  • Random Access Techniques for Spatial Multiplexing in Wireless Local Area Networks
  • Physical Layer Network Coding in Wireless Bidirectional Relaying Systems
  • Noise Cancellation Techniques for Electric Vehicles
  • Machine learning for cognitive radio
  • Signal process and applications, Radio over fiber

Representative Publication :

  • Cao Lengchi and Satoshi Denno, "Nonlinear Precoding for XOR Physical Layer Network Coding in Bi-directional MIMO Relay Systems," IEICE Trans. Commun., Vol.E100-B, No.3, pp.440-448, Mar. 2017.
  • Satoshi Denno and Yusuke Murakami, "Uplink Multiuser MIMO Access With Probe Packets in Distributed Wireless Networks," IEICE Trans. Commun., Vol.E101-B, No.6, 2018.

Research Area : Distributed System Design Laboratory

(URL:http://www.ec.okayama-u.ac.jp/~dist/index_eng.html)

Nobuo FUNABIKI, Professor

Minoru KURIBAYASHI, Associate Professor

Research Themes:

  • Java Programming Learning Assistant System
  • Desktop Grid Computing System
  • Elastic Wireless LAN System
  • Digital Watermarking and its Applications
  • Design of Aesthetic QR Code

Representative Publication :

  • M. Kuribayashi and N. Funabiki, "Universal scoring function based on bias equalizer for bias-based fingerprinting codes," IEICE Transactions on Fundamentals of Electronics, Communications and Computer Sciences, Vol.E101-A, No.1, pp.119-128, January 2018.

Research Area : Optical and Electromagnetic Waves Laboratory

(URL:http://www.ec.okayama-u.ac.jp/~oew/index_en.html )

Yoshitaka TOYOTA, Professor

Kengo IOKIBE, Assistant Professor

Research Themes:

  • Electromagnetic Compatible Design of Electrical and Electronic Devices and Systems
  • Control of Electromagnetic Wave Propagation by Periodic Structure
  • Measurement, Modeling and Simulation of EMC Characteristics of Semiconductor Devices
  • Countermeasures Against Side-channel Attacks on Cryptographic Devices

Representative Publication :

  • Yoshitaka Toyota, Shohei Kan, Kengo Iokibe, "Suppression of Mode Conversion by Using Tightly Coupled Asymmetrically Tapered Bend in Differential Lines," IEICE Transactions on Communications, Vol. E98-B, No. 7, pp. 1188-1195, July 2015.
  • Kengo Iokibe, Tetsuo Amano, Kaoru Okamoto and Yoshitaka Toyota, “Equivalent Circuit Modeling of Cryptographic Integrated Circuit for Information Security Design,” IEEE Transactions on Electromagnetic Compatibility, Vol. 55, No.3, pp. 581-588, June 2013.