A cluster based OLSR routing to overcome the routing issues in ad hoc networks: A review

As the technologies overture, the communication media is upcoming with the need for wired and wireless networking. The wireless technology and portable computing devices enhances the future for wireless mobile networking. Mobile ad hoc network (MANET) is one of the emerging technologies with many applications. MANET is the network with specific characteristics like dynamic topology, wireless medium, and distributed co-operation. However, the nature of MANET makes it vulnerable to many challenges and security issues. In this paper, we give a brief idea about MANET with its challenges, application and overview of routing protocols. We have also proposed an idea of enhancing olsr by a clustering technique in order to reduce the network overhead and increase the packet delivery ratio which is effective in Vehicular ad hoc Network (VANET).