A Design of Middleware Layer for QoS in Wireless Sensor Networks

Based on the characteristics of the wireless sensor networks, a middleware layer for quality of service support was proposed. For kinds of user's QoS requirements, tasks of network were scheduled by collecting and updating local information continuously, and the reliability of network was enhanced by redundancy. Results of simulation show that the middleware mechanism can not only meet the user QoS requirements, but also reduce the energy consumption of network.