A priority-based 802.4 protocol for the token bus network

摘要

This paper presents a priority-based 802.4 protocol, which aims to favor messages according to their priorities, for the token bus network. This protocol is an extension to the IEEE 802.4 token bus protocol and is intended to support the real-time communication on the token bus network. The key to the priority-based 802.4 protocol is to resolve the global priority contention. This problem is solved by a broadcast protocol.