Mobility-Based Clustering With Link Quality Estimation for Urban Vanets

Owing to high mobility and a large amount of vehicles in a vehicular ad hoc network (VANET), it is challenging to overcome the issues of frequent topology changes and network scalability. To mitigate these issues, a vehicle clustering and management scheme can be applied to VANETs. Towards this goal, a mobility-based clustering scheme with a clustering link quality estimation (CLQE) metric considering both mobility information and link quality estimation is proposed in this paper. The proposed clustering scheme is evaluated through the NS-3 simulator and our simulation results show that our proposed scheme outperforms the closely related schemes in most scenarios.