Advancement in Quality of Services in Wireless Sensor Networks

The most challenging as well as exciting research domains of this time is WSN. The arrangement of nodes are organized in cluster and relay nodes can used as CH with better capacity, although this technique has lesser speed in terms of networks with several sensors. The disadvantage of this technique is that data might fail because of node being damaged. Quality of service was centralized at network with interest in metrics for example delay, throughput, jitter etc. In this paper, focus is on appropriate metrics of QOS in WSN which constitutes availability, service, re-liability which improves in quality of service. We discuss mathematical and theoretical aspects to improve Availability Service and Reliability (ASR).