Analysis of beaconing performance in IEEE 802.11p on vehicular ad-hoc environment

Abstract

VANET is special kind of Mobile Ad-hoc Network(MANET), rapid change in mobile nodes(car/vehicles) in case of VANET makes it different from MANET while sharing all other features of MANET. VANET has many advantages including minimising traffic, reducing car accidents, co-operative awareness, and environmental safety by monitoring CO2 emission. All these applications require proper information dissemination among nodes. This is achieved through Vehicle to Vehicle (V2V), Vehicle to Infrastructure (V2I) or a hybrid approach. For this communication, U.S. FCC allotted Dedicated Short-Range Communication (DSRC) spectrum of 75MHz in the frequency band of 5GHz(5.85 GHz to 5.925 GHz) [1]. This 75MHz spectrum is divided into seven 10 MHz-wide channels, One channel is the control channel (CCH) and the remaining six channels are the service channels (SCHs). Short messages are exchanged among the nodes to create cooperative awareness. These short messages are referred as Beacons, and the process is called as beaconing. Beaconing is always carried on CCH. This paper provides analysis of the beaconing performance of IEEE 802.11p when only the control channel is used for beaconing. Simulation experiments are conducted using OMNET++ and VEINS framework. SUMO is used to create the platoon of vehicles being deployed on the model and beaconing performance is evaluated using different intervals.