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Yagi Lab
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The lab explores the theory of codes for sending information accurately and safely.
AboutAbout the lab
Approaching the theoretical limits of communication with codes.
The Yagi Lab studies coding problems in information and communication systems, from the standpoint of the theoretical limits of reliability and efficiency.
Centered on multiuser information theory and coding theory, the lab works on coding aimed at applications such as wireless networks.
The lab also works on information security research that applies information theory and coding theory.
The research descriptions on the lab website date from around 2015.
Key terms
- Coding
- Converting information into a sequence of symbols suited to communication or storage
- Multiple-access channel
- A form of communication in which multiple senders transmit information to the same receiver at the same time
- Polar code
- A type of error-correcting code, known as a high-performance code
ResearchResearch themes
The lab evaluates the theoretical limits of reliability and efficiency in coding for information and communication systems, and studies mechanisms that approach those limits. It also applies results from information theory and coding theory to the field of information security.
*Illustrative imageCoding for Multiuser Communication
Aiming at applications such as wireless networks, the lab studies coding for multiple-access channels and interference channels. For communication that allows cooperation between users, it works on clarifying the theoretical limits and developing codes that approach them.
*Illustrative imageError-Correcting Codes and Decoding Algorithms
The lab studies codes that achieve the transmission-rate limits shown by information theory while maintaining reliability, along with efficient decoding algorithms for them. In particular, it works on developing decoding algorithms for polar codes.
*Illustrative imageCoding in Information Security
Information security includes technologies related to coding, such as coding to prevent eavesdropping and digital watermarking. This lab specifically studies data compression with privacy protection, secret key sharing among multiple terminals, and performance analysis of biometric identification systems.
MembersFaculty
- Hideki Yagi
VoicesStudent voices
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Write a lab reviewAnonymous · Your draft is saved if you stopRelatedLabs similar to Yagi Lab
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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: “Conv code 177 133” Kirlf / CC BY-SA 4.0 (cropped)
- Coding for Multiuser Communication: “Wireless mesh network diagram” David Johnson, Karel Matthee, Dare Sokoya, Lawrence Mboweni, Ajay Makan, and Henk Kotze (Wireless Africa, Meraka Institute, South Africa) / CC BY-SA 2.5 (cropped)
- Error-Correcting Codes and Decoding Algorithms: “Convolutional code error correction” Kirlf / CC BY-SA 4.0 (cropped)
- Coding in Information Security: “Holland watermark” Mixed authorship. Paper mills - mostly the 19th century, mostly Europe. / Public domain (cropped)
- Related lab (Ohama-Santoso Lab): “NASA secure communication console at National Cryptologic Museum.agr” ArnoldReinhold / CC BY-SA 4.0 (cropped)
- Related lab (Ichino Lab): “Fingerprint reader 2” Flanoz / CC0 (cropped)
- Related lab (Kurihara Lab): “Data storage mediums” Unnerving duck / CC0 (cropped)
- Related lab (Sugawara Lab): “Car parking sensor closeup” Shixart1985 / CC BY 2.0 (cropped)
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