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The authors propose an energy-efficient communication protocol, called Optical-LEACH (O-LEACH), for hybrid sensor networks that consist of distributed optical fiber sensor links located at the center and two isolated Wireless Sensor Networks (WSNs) with randomly scattered nodes. Network performances in terms of lifetime are simulated with ~30% improvement over LEACH protocol. Wireless Sensor Network (WSN) has attracted considerable attentions during the last few years due to characteristics such as feasibility of rapid deployment, self-organization and fault tolerance, as well as rapid development of wireless communications and electronics.
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