Abstract :
Abstract – Mobile adhoc network (MANET) is very much
popular due to the fact that these networks are dynamic,
infrastructure less and scalable. Most of the routing protocols
focus on obtaining a workable route without considering the
quality of service (QoS). QoS is not easily achieved by the
real time or multimedia applications due to node mobility,
distributed channel access, and fading radio signal effects.
Proposed mechanism makes the resource consumption more
efficiently by minimizing the unnecessary signaling and
stopping the session that cannot meet the demanded QoS
requirement. Mechanism describes the QoS extension for Adhoc
on-demand distance vector (AODV) routing. Our scheme
does not modify the MAC protocol, but judge the effect of
phenomena such as medium contention, channel fading and
interference, from which gi the available bandwidth, on it.
Based on this phenomenon the available bandwidth is
estimated of a wireless host to each of its neighbors. QoS
AODV shows a significant improvement in performance
matrix such as throughput, available bandwidth, probability
of packet loss and so on. An implementation and simulation
study in NS-2 for above algorithm is for improvement in
overhead, packet delivery ratio and delay over the standard
AODV for high work load scenario.
