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One of the key challenges in wireless sensor networks is to design an energy efficient communication protocol. In this paper, we present an innovative code-based sleep and wake-up scheduling scheme to minimize energy consumption caused by idle listening. The proposed scheme called SWAP divides time into slots of equal length, and at the beginning o...
The system has many benefits as compared to previous approaches in direction signage systems. We prove that our system is robust, cost-effective, scalable, and easy- to-integrate. We show that we can support multiple tags with multiple destinations in the system with minimal concerns about tag and reader collisions. This proves the robustness of th...
In this paper, we develop a direction signage system that helps a patient to navigate within a health care center effectively without any wait time hassles. This wireless system identifies any patient with a RFID (radio frequency identification) tag along the hallways and guides them towards their preferred destination. The patient scans a tag with...