Clustering based Routing Protocols in Vehicular Ad-hoc Networks: A Review

Vehicular Ad Hoc Network (VANET) is subclass of Mobile Ad Hoc Network (MANET) which has become active area for research, standardization, and development because it has tremendous potential to improve vehicle and road safety, traffic efficiency. There are lot of challenges in VANET to route the packet to destination because of high mobility involved in the network. keeping the constraint of mobility in view, this paper provides a review of various routing techniques based on clustering algorithm. The main motive is to select a particular technique that exist in literature depending on the need of applications. Clustering in VANET is a control scheme to manage media access and make VANET as a global topology. Most algorithms and protocols are derived from Mobile Ad-hoc Network (MANET) which have some challenges and regarding issues. The architecture of VANETs with the application and constraints of routing protocols is explained in this paper. It searches the motivation behind the development of these clustering protocols. In this paper classification of various clustering routing protocols is done on the basis of following parameters i.e. research methodology, their advantages and disadvantage, various challenges and problems faced during the implementation of routing technique.