Energy and Bandwidth Constrained QoS Enabled Routing for MANETs

Mobile adhoc networks are rapid deployable self organizing networks. Their key characteristics aredynamic topology, high node mobility, low channel bandwidth and limited battery power. Hence, it isnecessary to minimize bandwidth and energy consumption. To transmit packets, available bandwidth isknown along the route from sender to receiver. Thus, bandwidth estimation is the main metric to supportQuality of Service (QoS). This work focuses on improving the accuracy of available bandwidth andincorporating a QoS-aware scheme into the route discovery procedure. It is also important to limit theenergy consumed by nodes. Probability based overhearing method is proposed to reduce energy spent onoverhearing nodes. This experiment is implemented in NS2 simulator and the performance of the network isanalyzed in terms of QoS parameters.