On MANET Routing Protocols for Mobility and Scalability

This paper focuses on performance investigation of reactive and proactive MANET routing protocols, namely AODV, DSR, TORA and OLSR. MANET is a type of Ad Hoc network, and here its functionality is based on 802.11 IEEE standards to communicate in a discrete and disperse environment with no central management. Hence, the main investigation done in this paper is of the discrete feature and routing in MANET. The main issue of MANET is the breakage of link at certain moment and re-generation of link at certain state as it consists of routers which are mobile in nature i. e. are independent to roam in an arbitrary motion. Therefore, this paper presents a performance comparison of the selected MANET routing protocols in a varying network sizes with increasing area and nodes size to investigate mobility and scalability of the routing process.