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Intelligent Energy Efficient and MAC Aware Multipath QoS Routing Protocol for Wireless Multimedia Sensor Networks

Sensor devices are limited energy, limited processing power and low memory devices. Providing quality of service (QoS) with highly constrained devices is always a challenging issue. To conserve energy and to provide application specific QoS requirement is a major concern of wireless multimedia sensor networks (WMSNs). The best solution for such network is using multi-criteria decision making. An artificial intelligence (AI) suits best for decision based on multiple criteria. In this paper fuzzy logic is used to select an optimal path for routing from multiple paths. Expected transmission count (ETX), residual energy (RE) and hop count (HP) is used in decision making by fuzzy logic. The proposed approach improves the throughput and avoids lossy links using the ETX which is the requirement of multimedia tra c and RE and HC also help in selecting high energy and minimum hop count path. Duty cycle (DC) is adjusted dynamically which minimizes the energy consumption of a node as compared to the static duty cycle approaches.