Vasughi Sundramoorthy

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The combination of the Internet and emerging technologies such as nearfield communications, real-time localization, and embedded sensors lets us transform everyday objects into smart objects that can understand and react to their environment. Such objects are building blocks for the Internet of Things and enable novel computing applications. As a step(More)
Domestic energy consumption contributes approximately 30 percent to the UK's total C02 output. Although simple energy-saving steps can reduce the national carbon emission level by 10 percent, energy demand in housing and domestic appliances is rapidly increasing. The Digital Home Energy Management System assesses user experiences and preferences to provide(More)
We analyze the behavior of FRODO, a second generation service discovery protocol, in response to message loss in the network. First generation protocols, like UPnP and Jini rely on underlying network layers to enhance their failure recovery. A comparison with UPnP and Jini shows that FRODO performs more efficiently in maintaining consistency, with shorter(More)
Persuasive energy monitoring technology has the potential to inspire sustainable energy lifestyles within the home. However, to effect positive ecological behaviour change, a more user-driven approach is needed for the development of the technology, where the design needs to be accompanied by study on user behaviours and motivations, and the prototype(More)
A smart home is a house that is responsive to its inhabitants and their actions by being aware of their context. Potential applications for smart homes address economic and comfort aspects of living, or could provide unobtrusive support for the elderly or disabled to promote independent living. The basic building blocks of such a smart home is a computing(More)
This paper describes a new mechanism to garantee quality of service for multimedia streams in low-cost home networks. Quality of service is based on a token, of which the route in the network is determined by a distributed scheduler. The network node that has the token –the active node– can send its data during a predetermined period. The length of this(More)
Communication and node failures degrade the ability of a service discovery protocol to ensure users receive the correct service information when the service changes. We propose that service discovery protocols employ a set of recovery techniques to recover from failures and regain consistency. We use simulations to show that the type of recovery technique a(More)
Digital Environment Home Energy Monitoring System (DEHEMS) is a wide scale domestic energy monitoring and managing system that enables real-time and historical energy monitoring and feedback, provides comparison of groups of households with similar characteristics and personalised energy saving tips and alerts. This paper presents the design and development(More)
As service discovery protocols (SDP) are becoming increasingly important for ubiquitous computing, they must behave according to predefined principles. We present the functional principles of service discovery for robust, registry-based service discovery. A methodology to guarantee adherence to these principles is provided and illustrated by formal(More)