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Ishibashi Lab
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A communication systems lab pursuing the utmost reliability of wireless communication.
AboutAbout the lab
Aiming for ultimate reliability in communication.
The Ishibashi Lab researches wireless communication technologies under the banner of Ultimate Reliability of communications.
Prof. Ishibashi's current research interests are robust beamforming, grant-free access, energy harvesting, compressed sensing, coding, cell-free networks, and MIMO.
The lab also takes part in joint projects with universities and companies.
Students work on topics such as near-field beamforming, cell-free systems, and waveform design for terahertz-band communication.
Key terms
- MIMO
- A wireless communication technique that transmits and receives radio waves simultaneously using multiple antennas.
- Beamforming
- A technique that adjusts the radio waves emitted from multiple antennas to direct them in a specific direction.
- Cell-free network
- A network with no cells divided by base station, in which many antenna sites cooperate to communicate with devices.
NewsLab news
A graduate's paper was accepted to IEEE Wireless Communications
A graduate's paper was accepted to IEEE Wireless Communications Letters
A master's student received an Outstanding Presentation Award at the "First-Time Workshop" of the IEICE Technical Committee on Radio Communication Systems (RCS)
ResearchResearch themes
The Ishibashi Lab upholds the motto "For Ultimate Reliability of Communications." It advances research on wireless communication systems through joint projects with universities and companies.
*Illustrative imageWireless communication beyond classical design
The lab is developing wireless communication systems that achieve extreme performance, departing from conventional classical wireless design. This is a joint project with Osaka University and Yokohama National University.
*Illustrative imageFoundational technologies for green IoT
The lab studies next-generation foundational technologies for reconstructing physical space in cyberspace. This is a joint project with the University of Southern California, Osaka University, and others.
*Illustrative imageBeyond 5G and 6G technologies
As a project with Ericsson, the lab studies technologies for Beyond 5G and 6G.
*Illustrative imageNext-generation cellular networks
As joint research with KDDI R&D Labs., the lab is studying next-generation cellular networks.
MembersFaculty
The lab's members include faculty, secretaries, joint researchers, doctoral, master's, and undergraduate students, and research students.As of 2026
- ProfessorKoji Ishibashi
- Assistant ProfessorZekun Hong
VoicesStudent voices
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Report an errorAbout the images
The top and research theme images are illustrative and were not taken at the lab. They are cropped from Wikimedia Commons images. Cropped CC BY-SA images are provided under the same CC BY-SA license as the original (version shown on each line).
- Top image: “LteMimoAntennen” BAZ Spezialantennen / CC BY 3.0 (cropped)
- Wireless communication beyond classical design: “HAARP Antenna Array Transmitter Buildings” Secoy, A / CC BY-SA 4.0 (cropped)
- Foundational technologies for green IoT: “Tools.Valarm.net Remotely Monitoring Industrial IoT Sensors for Water and Air Quality with Lorenzo and Edward” Edwardpultar / CC BY-SA 4.0 (cropped)
- Beyond 5G and 6G technologies: “Cellular 5G Equipment - Cell Tower Antennas” Tony Webster / CC BY 2.0 (cropped)
- Next-generation cellular networks: “Cellular tower-3” Wikideas1 / CC0 (cropped)
- Related lab (Muramatsu Lab): “Body Area Network” Jtel / Public domain (cropped)
- Related lab (Yamamoto Lab): “Drone flying and surveying ( )” Oregon Department of Transportation / CC BY 2.0 (cropped)
- Related lab (Ohzahata Lab): “Cellular network antenna mount Haringey London” Acabashi / CC BY-SA 4.0 (cropped)
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