Dr. Nikolaos Pappas, Associate Professor at Linköping University and a valuable member of ELIXIRION, continues to make strides in advancing the field of Goal-oriented Semantic Communication. On September 3rd, 2024, Dr. Pappas proudly represented ELIXIRION at the IEEE PIMRC 2024 in Valencia, Spain, with a comprehensive online tutorial that tackled key technical challenges and shared recent breakthroughs in this evolving paradigm, critical for the future of wireless networks.
Tutorial Overview: Advancing Goal-Oriented Semantic Communication
Dr. Pappas’ tutorial was structured to guide participants through a detailed exploration of goal-oriented semantic communication, an emerging area of research that leverages the freshness and importance of information for network performance optimization. Divided into four parts, the tutorial provided both theoretical foundations and practical applications, while also offering a future outlook.
Part I: Semantics-aware Communications
In the first section, the rationale and background were explained, essential definitions were provided, and both historical and current approaches to goal-oriented semantic communication were reviewed. This section also introduced the concept of the semantics of information, moving beyond traditional proxy metrics like the age and value of information.
- Motivation and initial definitions considering the end-to-end information chain
- Age, Quality, and Value of Information
- Initial models, approaches, and tools
Part II: Information Theoretic Approaches to Goal-oriented Semantic Communication
The second section focused on information-theoretic methods for goal-oriented communication, drawing on recent findings from rate-distortion-perception theory.
- Semantic source coding
- Indirect rate-distortion modeling
- Rate-distortion-perception: modeling and computation
Part III: End-to-end information chain
In the third section, the tutorial presented findings on autonomous maintenance in industrial IoT, semantic source coding, and autonomous systems.
- Remote tracking, reconstruction, and actuation
- Autonomous maintenance
- Effective AoI
Part IV: Concluding remarks, open problems, and future directions
Finally, the fourth section concluded the tutorial with an outlook on the future of goal-oriented semantic communication and networking.
By presenting this comprehensive tutorial at IEEE PIMRC 2024, Dr. Pappas reaffirmed ELIXIRION’s position at the cutting edge of research and development in wireless communication.