The seminar, titled Goal Oriented Communication for the Scale-up of MTC, was a part of the CS Distinguished Seminar Series organized by the Chalmers University of Technology, Sweden. You can find more detailed information about the seminar below:
Speaker
Prof. Dr. Elif UYSAL
Title
Goal Oriented Communication for the Scale-up of MTC
SLIDES (you can click to view the slides)
Abstract
One of the ways that 6G is envisioned to differ from previous generations of communication standards is its native and massive support for remote computations, intelligence and decision making. To achieve the scalable growth of such applications we need communication networks to send only the right pieces of information to the point of computation at the right time. This is within the concept that we define as Goal Oriented (GO) communication, also referred to loosely as “Semantic” communication in certain contexts, as it calls for a departure from classical communication theoretic problem formulations. Moreover, a GO approach calls for a departure from traditional layer functionalities. In particular, through removing the assumption on the exogeneous arrival of data, this approach couples classical application layer functionalities in the link layer operation. Toward practical algorithms that will feasibly place GO communication into products and standards that can revolutionize the network capacity in MTC, a first order yet effective approach has been optimization for data freshness metrics. In this talk will highlight a number of examples of using such metrics in recent research and implementations. We will show the effectiveness of designing for basic timeliness metrics such as the Age of Information (AoI), Query Age of Information (QAoI) at the physical, link, medium access, transport and application layers, and exhibit resulting innovations in scheduling, random access, and congestion control. We will close by highlighting recent work moving forward from freshness to more advanced GO performance metrics such as end-to-end inference error.