Proposed a new Algorithm for real-time applications in Routing of Wireless Sensor Networks
S. M. Hossein Jalilolghadr, Masoud Sabaei · 2011
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, we 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 we use EDF policy in each node to reduce miss ratio of packets. In the best condition of real-timeness of the network, the proposed protocol has been compared with the famous protocols for WSN which are classified under real-time protocols. The simulation results suggest remarkable improvement for the proposed protocol in comparison with other existing protocols. Keywords-Real-time; Life time; Power Consumption; Bellman-Ford algorithm; Wireless Sensor Networks; I. I NTRODUCTION