An overview of researches on ubiquitous computing networks

The ubiquitous computing is the method of enhancing computer use by making many computers available throughout the physical environment, but making them effectively invisible to the user. Here, the computers are logically invisible rather than physically invisible: Invisible computing allows the computers and communications devices to recede from being the central focus of the user's attention into the invisible computing world, so that they work in the background without being noticed by users. This paper overviews the basic ideas, technical issues, on-going research activities on ubiquitous computing from not only the stand-alone computer technology viewpoint, but also from the networking and service viewpoints.