Performance Measurement of a Dual-Channel Intersection Switch on the Vehicular Network

This paper designs an intensively measures the performance of an efficient message switch scheme for the intersection area where routing decision may be complex due to traffic concentration, aiming at enhancing end-to-end delays and reliability for the information retrieval service in the vehicular network. Installed at the corner of an intersection, each switch node opens an external interface to exchange messages with vehicles proceeding to the intersection as well as switches the received messages via the dual-channel internal interfaces. Based on the slot-based MAC, at each slot time of internal interfaces, the sender node probes the channel status of the two different destinations and then dynamically selects the appropriate channel according to the probing result. The simulation result shows that the proposed scheme improves the delivery ratio by up to 18.5 % for the experimental channel error rate range as well as up to 8.1 % for the given network load distribution.