Second 6G life Workshop on Post Shannon Theory

TL;DR

Beyond Shannon's foundational limits, this workshop surveys advances in post-Shannon theory centered on message identification, common randomness, and quantum extensions. The event employed a tutorial framework from VCC 2023, followed by focused talks on randomized vs deterministic identification, Poisson and molecular channel connections, and locally homomorphic channels, with concrete bounds and constructions presented by the six speakers. Key contributions include new deterministic identification constructions and fading-channel bounds, a synthesis of common randomness's role in identification, and initial steps toward quantum identification analogues. The proceedings underscore the practical relevance for future identification-based communication systems and secure resource management in next-generation networks.

Abstract

The one-day workshop, held prior to the "ZIF Workshop on Information Theory and Related Fields", provided an excellent opportunity for in-depth discussions on several topics within the field of post-Shannon theory. The agenda covered deterministic and randomized identification, focusing on various methods and algorithms for identifying data or signals deterministically and through randomized processes. It explored the theoretical foundations and practical applications of these techniques. The session on resources for increasing identification capacity examined the different resources and strategies that can be utilized to boost the capacity for identifying information. This included discussions on both hardware and software solutions, as well as innovative approaches to resource allocation and optimization. Participants delved into common randomness generation, essential for various cryptographic protocols and communication systems. The session highlighted recent advancements and practical implementations of common randomness in secure communications. The workshop concluded with a detailed look at the development and practical deployment of identification codes. Experts shared insights on code construction techniques, implementation challenges, and real-world applications in various communication systems. We extend our thanks to the esteemed speakers for their valuable contributions: Caspar von Lengerke, Wafa Labidi, Ilya Vorobyev, Johannes Rosenberger, Jonathan Huffmann, and Pau Colomer. Their presentations and insights significantly enriched the workshop. Additionally, we are grateful to all the participants whose active engagement, constructive comments, and stimulating discussions made the event a success. Your involvement was crucial in fostering a collaborative and intellectually vibrant environment.