DBGlobe: A Data-Centric Approach to Global Computing
ICDCSW '02 Proceedings of the 22nd International Conference on Distributed Computing Systems
A data-centric design for n-tier architecture
Information Sciences—Informatics and Computer Science: An International Journal - Internet computing
Throughput Measurement for UDP Traffic in an IEEE 802.11g WLAN
SNPD-SAWN '05 Proceedings of the Sixth International Conference on Software Engineering, Artificial Intelligence, Networking and Parallel/Distributed Computing and First ACIS International Workshop on Self-Assembling Wireless Networks
Motion Control of Passive Intelligent Walker Using Servo Brakes
IEEE Transactions on Robotics
Efficient mobility management for vertical handoff between WWAN and WLAN
IEEE Communications Magazine
Transmission of patient vital signs using wireless body area networks
Mobile Networks and Applications - Special issue on Wireless and Personal Communications
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As our population ages, many researchers have investigated how assistive devices may be used to prolong independent living, thus reducing health-care costs. Some have suggested augmenting walkers (also called rollators) with sensors and actuators to assist elderly users. Such systems may also collect usage behavior and make it available to medical professionals for diagnosis or additional research. Ubiquitous computing provides an opportunity to embed computing and networking technologies in our everyday lives. It is natural to incorporate smart walkers into such environments. Some uses of a walker, such as environment customization and cognitive monitoring, also depend on a smart environment. Existing intelligent walkers usually aim at facilitating user mobility and focus on control. We propose that to support a smart walker in a ubiquitous-computing environment, the system should also focus on data, i.e., it should facilitate data collection, aggregation, and dissemination between the walker and the system. This paper describes a smart walker, and discusses how to incorporate it into a ubiquitous-computing environment using a data-centric approach with Jabber technologies. It also argues that Jabber-based middleware is suitable for general ubiquitous computing. Some applications show how the walker may be used with the middleware support.