Provisioning of QoS Routing based on Bandwidth estimation in Mobile Ad-Hoc Network
Monika Rajput, Vaishali Jadhav · 2012
Abstract— Most routing protocol focus on obtaining a workable route without considering network traffic condition for a mobile ad-hoc network (MANET). Therefore, the quality of service (QoS) is not easily achieved by the real time or multimedia applications. Providing quality- of-service (QoS) in wireless ad-hoc networks is an intrinsically complex task due to node mobility, distributed channel access, and fading radio signal effects. Proposed mechanism makes the resource consumption more efficient by minimizing the unnecessary signaling and stopping the session that cannot meet the demanded QoS requirement. Mechanism describes the QoS extension for Ad-hoc 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, which influence the available bandwidth, on it. Based on this phenomena the available bandwidth is estimated of a wireless host to each of its neighbors (3). QoS AODV with bandwidth estimation shows a significant improvement in performance matrix, such as end-to-end delay statistics, available bandwidth, and probability of packet loss and so on. An implementation and simulation study in NS-2 for above algorithm is for improvement in throughput, overhead, delivery ratio and delay over the standard AODV for high work load scenario.