Impact of Variable Bit Rate and Packet Size on the Performance Evaluation of Neighbor Aware AODV and DSDV Routing Protocols for MANET's

Mobile Ad hoc Networks (MANET) have become an exciting and important technology in recent years because of the rapid proliferation of wireless nodes. They consist of wireless host that can move freely, rapidly changing, which are likely composed of relatively limited bandwidth and low powered wireless links. MANET is a wireless mobile network in which mobile nodes can transmit and receive without any fixed infrastructure and can be distributed for many applications such as soldiers relaying critical information, business associates sharing information during get together. Authentic and efficient routing is significant and vital in those benefits. A major dispute that lies in MANET communication is the limit less mobility and more frequent link failures. Conventional routing algorithms are therefore deficient for ad-hoc networks. In this paper we propose a modified approach based on the AODV [2] which affords more beneficial results when compared with the conventional AODV and DSDV protocols. Simulations are accomplished in ns-2 and various performance metrics like throughput, end to end delay, Packet loss and pdr [5,6,8] with variable bit rate, packet size and node density and pause time are computed.