Proposed a New Algorithm for Real-Time Applications in Routing of Wireless Sensor Networks

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Many wireless sensor network applications must resolve the inherent conflict between energy efficient communication and the need to achieve desired quality of service such as end-to-end communication delay. To address this challenge, the authors propose a new protocol which tries to resolve the finding a trade off between lifetime of the network and real-timeness based on application. In the proposed protocol, at first, network graph constructed under effect of two coefficients. Each of these coefficients represents the importance of real-timeness or lifetime of the network. If one coefficient increased the other one will be decreased consequently. Moreover, for improving real-timeness they use EDF policy in each node to reduce miss ratio of packets.