Prof. Honggang Zhang
Zhejiang University, China
24th May 2022, 4:00pm - 5:00pm (GST)
Rethinking Modern Communication from Semantic Coding to Semantic Communication
Modern communications are usually designed to pursue a higher bit-level precision and fewer bits while transmitting a message. We give a rethinking on these two fundamental features and introduce the concept and advantage of semantics that take advantage of a new kind of semantics-aware communication framework, incorporating both the semantic encoding and the semantic communication issues. After analyzing the underlying defects of existing semantics-aware techniques, we establish a confidence-based distillation mechanism for the semantic coding problem and put forward a reinforcement learning (RL)-powered semantic communication solution, which endow a communications system the ability to convey the semantics instead of pursuing the bit level accuracy. On top of these technical contributions, this talk provides a new insight to understand how the semantics are processed and represented in a semantics-aware coding and communication system, and verifies the significant benefits of doing so. Targeting at the next-generation (6G) semantics-aware communication, a number of critical concerns and open challenges such as the information overhead, semantic security and implementation cost are also discussed and envisioned.
Dr. Honggang Zhang is the Chief Managing Editor of Intelligent Computing Journal, a Science Partner Journal jointly established by AAAS (American Association for the Advancement of Science) and Zhejiang Lab (https://spj.sciencemag.org/