QoS-Aware Routing for Sensor Networks Using Distance-Based Proportional Delay Differentiation (DPDD) (original) (raw)

Many routing 1 protocols have been proposed for wireless sensor networks. The majority of these protocols considered energy efficiency as the main objective and assumed data traffic with unconstrained delivery requirements. But the introduction of image and video sensors demand certain quality of services (QoS) from the routing protocols and underlying networks. Managing such real-time data requires both energy efficiency and QoS assurances in order to ensure efficient usage of sensor resources and correctness of the collected information. In this paper we propose a routing protocol that will ensure endto-end delay requirement of collected real-time data. At the same time the throughput of non-real-time data is maximized by adjusting the service rate of real-time and non-real-time data. I.