Goal-Oriented Integration of Sensing, Communication, Computing, and Control for Mission-Critical Internet-of-Things
Jie Cao, Ernest Kurniawan, Amnart Boonkajay, Sumei Sun, Petar Popovski, Xu Zhu
TL;DR
The paper tackles the challenge of building mission-critical 6G MC-IoT by integrating sensing, communication, computing, and control (S3C) through a goal-oriented framework. It proposes GIS3C, an end-to-end architecture that uses goal-oriented communication to bridge subsystems and reduce unnecessary data while focusing on task completion effectiveness. The contributions include environment-aware sensing, semantic communication, context-aware control, and situation-aware computing, plus a unified system-level metric for co-design, namely task completion effectiveness and cost, with $J_{sys}=\chi(J_{sa},J_{cm},J_{cn},J_{cp})$ and $C_{sys}=c_{sa}(C_{sa})+c_{cm}(C_{cm})+c_{cn}(C_{cn})+C_{cp}$. A use case on load frequency control demonstrates improved task completion effectiveness and reduced costs, and the paper discusses open challenges and directions for real-time green SemCom, heterogeneous network coexistence, and semantic-native communication.
Abstract
Driven by the development goal of network paradigm and demand for various functions in the sixth-generation (6G) mission-critical Internet-of-Things (MC-IoT), we foresee a goal-oriented integration of sensing, communication, computing, and control (GIS3C) in this paper. We first provide an overview of the tasks, requirements, and challenges of MC-IoT. Then we introduce an end-to-end GIS3C architecture, in which goal-oriented communication is leveraged to bridge and empower sensing, communication, control, and computing functionalities. By revealing the interplay among multiple subsystems in terms of key performance indicators and parameters, this paper introduces unified metrics, i.e., task completion effectiveness and cost, to facilitate S3C co-design in MC-IoT. The preliminary results demonstrate the benefits of GIS3C in improving task completion effectiveness while reducing costs. We also identify and highlight the gaps and challenges in applying GIS3C in the future 6G networks.
