MediateSpace
Danny Matthews, Dan Chalmers, Ian Wakeman · 2011
With almost four billion sensor-equipped mobile devices on the planet, the way is open for a variety of new context-based applications and services. However, this new opportunity creates concerns over privacy and access control and necessitates a robust and scalable solution. We propose the MediateSpace middleware which is a decentralised tuple space with contextual mediation capabilities for both data distributors and consumers. Distributors may restrict access by requiring the satisfaction of a contextual condition and consumers may restrict which data enters their computer (tuple conditions). Distributed X-Trees (a development of R-Trees) are used to achieve decentralisation.