Quality of Service On-demand Power Aware Routing Algorithm for Wireless Sensor Networks

Wireless Sensor networks are non-infrastructure networks which consist of mobile sensor nodes. Since the mobile nodes have limited battery power, it is very important to use energy efficiently in sensor networks. In order to maximize the lifetime of sensor networks, traffic should be sent via a route that can avoid nodes with low energy thereby minimizing the total transmission power. In addition, considering that the nodes of sensor networks are mobile, on-demand routing protocols are preferred for sensor networks. In this paper, we propose a novel on-demand power aware routing algorithm supporting quality of service called QDPRA. QDPRA prolongs its network lifetime by compromising between minimum energy consumption and fair energy consumption without additional control packets. QDPRA also improves its data packet delivery ratio, minimizes delay and maximizes throughput of the network.