Area surveillance, healthcare monitoring, environmental sensing, and industrial monitoring are just some of the areas that might benefit from Wireless Sensor Network (WSN) research. Quality of Service has emerged as a key concern for WSN deployments due to the increasing importance of this technology. Due to the limitations imposed by the applications running over WSN, achieving guaranteed QoS is challenging. Typically, QoS is measured in terms of network-level metrics like latency, throughput, packet loss, and jitter. A good quality of service network has low packet delivery latency, a high packet receipt ratio, and maximum throughput. Quality of service metrics may be collected at either the application or the network layer.

Quality of Service, Wireless Sensor Network,Area surveillance, healthcare monitoring, environmental sensing, packet loss, jitter