Cross-Layer Framework in the Internet of Things for Cyber-Physical Systems

摘要

The central requirement for high-performing cyber-physical system is an effective collection of sensed data and its application to act on the physical component of the system. For many cyber-physical systems, the infrastructure for sensing from and acting on the physical component is being built based on the concept and architecture of the Internet of Things. While the introduction of IETF routing and application layers protocols is helping the Internet of Things rapidly mature towards a structure that provides internetworking of sensing and actuating devices, multiple challenges still remain for an effective integration within cyber physical systems. Some of these challenges include reliable and ubiquitous communications, autonomous and self-aware operation, and handling of sensed data of varied types and characteristics. This position paper discuses the use of cross-layer techniques in the Internet of Things to address these challenges. This perspective not only encompasses the interaction between different layers of the network, but also between different cybernetic and physical components of the system. This view will be illustrated by discussing an application case that integrates the two infrastructures of the power grid and a cellular communications network. Finally, a general framework based on cognitive technology will be discussed as the elementthat enables cross-layer operation.