Traffic control using WiMAX with Dual Trigger Handover

This paper addresses the issue of traffic control in a vehicular environment. Data exchanged between vehicles and the infrastructure is based on the Stigmergic approach. WiMAX (IEEE Std 802.16e) is used for Infrastructure to Vehicle (I2V) communication. An architecture is proposed with the aim of minimizing packet loss. OPNET simulations are used to optimize this architecture for different Inter-Packet Transmission times as well as several vehicle speeds. An expected increase in performance is observed when comparing with similar work based on a modified WiFi communication scheme for I2V. In order to further increase system performance, Dual Trigger Handover (DTH) is used and OPNET simulations indicate that DTH reduces packet loss by up to 29%.