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Smartphones and other mobile platforms provide a low cost and easily accessible method of monitoring patient health, and aid healthcare professionals in early detection of disease. Immediate access to the gathered data is an essential factor in effective patient care. But the current processes used for patients' vital data collection is slow and error prone. This undermines the advantages of remote...
Covert channels threaten conventional network security paradigms by exploiting existing system resources never intended to facilitate communication. By doing so, they can evade detection by conventional network security mechanisms such as firewalls. In order to improve network security, it is necessary to detect and disrupt covert communications. Due to the sheer number and variety of covert channel...
Personnel safety is an integral element of any railroad operation. Rail tracks need to be regularly maintained, which often requires rail workers to be physically present on possibly live tracks along with their equipment. This results in hazardous work conditions for the workers. To ensure worker safety a reliable system for detecting oncoming trains and alerting the workers, while giving them sufficient...
North America's railroad industry and the Federal Railroad Administration continuously strive to improve operational safety and security of their operations. In order to design a reliable and efficient real-time monitoring and control network for freight trains and railcars, we had previously proposed a novel approach called Hybrid Technology Networking (HTN). HTN deploys sensor nodes in clusters,...
Currently, a rapidly increasing numbers of sensors are being used on vehicles and in surface transportation and this trend is expected to continue. In support of these sensor networks several energy management schemes, including hierarchical clustering methods, have been proposed in the literature to reduce energy usage. However, the operating conditions for wireless sensors in vehicular environments...
Covert channels provide a medium for secret communication by exploiting caveats in common networking protocols to hide information exchanges within benign activities, without being detected by unsuspecting hosts and network firewalls. This makes covert channels a significant security concern. Therefore, it is of utmost importance to develop effective and comprehensive countermeasures. In general,...
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