Liu Yi

Hello! I am currently a Ph.D. candidate in the Information Engineering Department at the Chinese University of Hong Kong (CUHK), supervised by Prof. Chandra Nair, and Prof. Amin Gohari. My research interests are in network information theory, with an emphasis on broadcast channels. 

My current research generally consists of two main components:

1. Investigating the extremal properties of certain information functionals related to the achievable region of broadcast channels.

2. Studying the "auxiliary receiver" approach to tighten the converse of broadcast channel capacity.

I am also interested in all aspects of information theory. I welcome discussions and potential collaborations. Please feel free to reach me out at ly023@ie.cuhk.edu.hk.

Education

• Ph.D. in Information Engineering, the Chinese University of Hong Kong, 2023-2027(Expected)

• B.S. in Mathematics and Information Engineering, the Chinese University of Hong Kong, 2019-2023

Publication (All publications list authors in alphabetical order.) [Google Scholar]

1. A Two Auxiliary Receiver Outer Bound to the Capacity Region of a Two-Receiver Discrete Memoryless Broadcast Channel

   • Amin Gohari, Yi Liu, Chandra Nair (ISIT 2026)

2. The Capacity Region for Classes of Sum-Broadcast Channels

   • Amin Gohari, Yi Liu, Chandra Nair (ISIT 2026) 

3. A Conjecture Regarding the Optimizers of Marton's Inner Bound for the Two-Receiver Broadcast Channel

   • Amin Gohari, Yi Liu, Chandra Nair (ISIT 2025) 

Preprint

1. Sub-optimality of Marton's Inner Bound for the Two-Receiver Broadcast Channel

   • Mian Huang, Yanxiao Liu, Yi Liu (arXiv:2608.19869)

2. An Improved Upper Bound on the Capacity of the Primitive Diamond Relay Channel

   • Deniz Gündüz, Yanxiao Liu, Yi Liu (arXiv:2610.12034)