Investigation of the performance of a controlled router for the CEBus [home automation]

A study of the delay and throughput of the consumer electronics bus (CEBus) with two media, power line (PL) and twisted pair (TP), interconnected through a controlled router with three priorities (HIGH, STANDARD, and DEFERRED) is discussed. The controlled router aims to provide fair channel access opportunities for intranetwork traffic for messages of all priorities. It reduces excessive channel access by internetwork traffic through the router and maintains the delay of intranetwork traffic at reasonable levels. The results of the simulation experiments are presented. The message delay of HIGH for internetwork traffic on the PL is of a larger value than that of HIGH and STANDARD for intranetwork traffic at light load and is smaller than that of the STANDARD and DEFERRED at heavy load. Moreover, the intranetwork message throughputs and delays of STANDARD and DEFERRED have improved greatly, in comparison to a traditional uncontrolled router, at only a small cost in internetwork HIGH performance