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• W1607610913 abstract "The evolution of computer technology follows a trajectory of miniaturizationand diversification. The technology has developed from mainframes (large computers used by many people) to personal computers (one computer per person)and recently, embedded computers (many computers per person). One of thesmallest embedded computers is a wireless sensor node, which is a batterypoweredminiaturized device equipped with processing capabilities, memory,wireless communication and sensors that can sense the physical parameters ofthe environment. A collection of sensor nodes that communicate through thewireless interface form a Wireless Sensor Network (WSN), which is an ad-hoc,self organizing network that can function unattended for long periods of time.Although traditionally WSNs have been regarded as static sensor arraysused mainly for environmental monitoring, recently, WSN applications haveundergone a paradigm shift from static to more dynamic environments, wherenodes are attached to moving objects, people or animals. Applications thatuse WSNs in motion are broad, ranging from transport and logistics to animalmonitoring, health care and military, just to mention a few.These application domains have a number of characteristics that challengethe algorithmic design of WSNs. Firstly, mobility has a negative effect onthe quality of the wireless communication and the performance of networkingprotocols. Nevertheless, it has been shown that mobility can enhance the functionality of the network by exploiting the movement patterns of mobile objects. Secondly, the heterogeneity of devices in a WSN has to be taken into account for increasing the network performance and lifetime. Thirdly, the WSN services should ideally assist the user in an unobtrusive and transparent way. Fourthly, energy-efficiency and scalability are of primary importance to prevent the network performance degradation. This thesis focuses on the problems and enhancements brought in by networ mobility, while also accounting for heterogeneity, transparency, energy efficiency and scalability. We propose a set of algorithms that enable WSNs to self-organize efficiently in the presence of mobility, adapt to and even exploit dynamics to increase the functionality of the network. Our contributions include an algorithm for motion detection, a set of clustering algorithms that can be used to handle mobility efficiently, and a service discovery protocol that enables dynamic user access to the WSN functionality." @default.
• W1607610913 created "2016-06-24" @default.
• W1607610913 creator A5037043218 @default.
• W1607610913 date "2008-10-01" @default.
• W1607610913 modified "2023-09-24" @default.
• W1607610913 title "Wireless sensor networks in motion : clustering algorithms for service discovery and provisioning" @default.
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