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By adding a wireless sensor network into a health monitoring system, I have found a method by using the combination of ZigBee and wireless LAN architecture to realize a remote medical monitoring system. The system's nodes and base stations use the short range communication standard: 802.15.4 / ZigBee standard. This system can collect various information from patients, achieving the remote medical...
This paper presents the design and implementation of a target tracking test bed based on wireless sensor network (WSN). The test bed is made up of a group of ultrasonic sensor nodes for ranging, a robot as mobile target for tracking and a laptop as base station for visualization. A new incremental optimization algorithm based on trilateration as well as a kind of changeable periodic scheduling scheme...
Wireless sensor networks are appealing to researchers due to their wide range of application. This paper proposes Variable Grid-quorum Pattern MAC protocol (VGP-MAC), an adaptive, asynchronous and low-latency MAC protocol designed for wireless sensor networks. VGP-MAC improves the pattern and timeslot schedule, which make nodes save energy by the proper sleep mechanism according to the nodes' own...
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