Author : Saurabh Chandra, Ashish Xavier Das and A.K. Jaiswal

In the current era of wireless network, popularity of MANET is increasing at a very fast pace. Reason for this increased attention is the wide range of multimedia applications running in an infrastructure less environment. Because of the infrastructure less environment, limited power and dynamic topology is used. It becomes difficult to provide an energy efficient environment in MANET. This type of network, operating as a stand-alone network or with one or multiple points of attachment to cellular networks or the Internet, paves the way for numerous new and exciting applications. In multi-hop wireless ad-hoc networks, designing energy efficient routing protocols is critical since nodes are power-constrained. Many routing protocols have been proposed so far. QoS of these protocols has been tested under CBR traffic with varying network condition. In this paper we proposed number of simulation in order to evaluate the quality of service of three routing protocols OLSR, DSR, ZRP under CBR traffic in terms of throughput, end-to-delay, jitter, total data received and packet delivery ratio in network scenarios. The network scenarios are considered effect of varying node and effect of constant pause time. The simulations are carried out in Qualnet simulator 6.1.

Keywords: MANET, OLSR, DSR, ZRP, Qualnet Simulator 6.1.

Article published in International Journal of Current  Engineering  and Technology, Vol.4,No.3 (June- 2014)