A Delay Aware Routing Protocol for Wireless Sensor Networks

Wireless Sensor Networks (WSN) consist of sensor nodes which can be deployed for various operations such as agriculture and environmental sensing, wild life monitoring, health care, military surveillance, industrial control, home automation, security etc. Quality of Service (QoS) is an important issue in WSNs and providing QoS support in WSNs is an emerging area of research. Due to resource constraints nature of sensor networks like processing power, memory, bandwidth, energy etc. providing QoS support in WSNs is a challenging task. Delay is an important QoS parameter for forwarding data in a time constraint WSNs environment. In this paper, the authors propose a delay aware routing protocol for transmission of time critical event information to the Sink of WSNs. The performance of the proposed protocol is evaluated by NS2 simulations under different scenarios.