A Collision-Free CSMA Protocol for Real-Time Communication
Junghoon Lee, Heonshik Shin, Chang Yun Park · Journal of Electrical Engineering and Information Science · 1996
This paper presents a deterministic collision-free protocol to support real-time communication in Ethernet with little overhead. In this protocol, each station has a distinct timer value depending on its physical location for which it defers starting transmission. This property prohibits collision combined with carrier sense facility of Ethernet and makes the network operate in round-robin fashion. Since overhead such as a token rotation time or an unused slot is obviated, the bandwidth can be used efficiently. The results of simulation show that the proposed scheme yields better performance than the token bus and TDMA for both synchronous and asynchronous messages.