Towards realistic mobility modeling for vehicular ad hoc networks

Authors:
Aifeng Wu;Jianqing Ma;Shiyong Zhang
Affiliations:
Fudan University, Shanghai, China;Fudan University, Shanghai, China;Fudan University, Shanghai, China
Venue:
Proceedings of the 44th Annual Simulation Symposium
Year:
2011

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Abstract

A vehicular ad hoc network (VANET) is distinct from most existing ad hoc networks in that the movements of vehicles are constrained by road, thus a realistic mobility model is vital for correctly evaluating protocol's performance in VANET. We analyze mobility models in vehicular ad hoc networks and identify key components that significantly impact the performance of protocols, involving vehicular movement pattern, map layout, trip selection scheme, destination selection mechanism, traffic light model. A realistic mobility model(REMM) is proposed based on the analysis results. We evaluate the model from two aspects: the degree of realism and the way it influences the performance of routing protocols. Simulation shows that our model has advantages over existing mobility models, including commonly used random way point model and existing mobility models STRAW. Our work improves the understanding of mobility modeling and REMM can be a platform for simulation of VANET protocols.