Fog computing Internet of Things networking method based on time delay perception

Abstract

The invention provides a fog computing Internet of Things networking method based on time delay perception. According to the time delay characteristics of the periodic service, the enhanced mobile broadband service and the non-periodic key service in the industrial Internet of Things scene, a fog computing access point (Fog Access Point, F-AP) can flexibly adopt semi-static scheduling, preemptivescheduling and dynamic scheduling. According to the invention, the storage, processing and forwarding capabilities of the F-AP are fully utilized, a queue and a time perception scheduling table are created for each service data packet, aperiodic key services requiring ultralow time delay are forwarded preferentially and can be directly forwarded to an edge server for service processing, and meanwhile strict low-time-delay jitter of periodic services can be guaranteed based on scheduling of time perception. The method can be applied to the scene of coexistence of various time delay demand differentiated services in the Internet of Things, and the time delay and jitter performance of the network are improved.

Description

technical field [0001] The invention relates to the technical field of the Internet of Things, in particular to a delay-aware-based fog computing Internet of Things networking method. Background technique [0002] On the basis of the Internet, the Internet of Things uses radio frequency identification technology and various types of sensors to interconnect all ordinary items that can be independently addressed for information exchange and communication, so as to realize intelligent identification and overall management of physical systems. . As an important application scenario of the Internet of Things, the Industrial Internet of Things has recently attracted a lot of attention. [0003] Businesses in the Industrial Internet of Things are mainly divided into periodic services, such as multiple time-sensitive data streams from different applications, with different cycles and key priorities; non-periodic but critical priority services, such as alarms, security detection Ev...

AI Technical Summary

Problems solved by technology

The existing networking methods mainly consider meeting the needs of low-latency, high-reliability services or enhanced mobile broadband services, but there is no corresponding solution for the mixed scheduling, processing and forwarding of the above three types of services

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