—WPAN technologies such as IEEE 802.15.4 have been introduced to allow for energy-efficient communication of control and sensor data. In certain application areas, it is benefici...
—A user’s focus of attention plays an important role in human–computer interaction applications, such as a ubiquitous computing environment and intelligent space, where the u...
Large-scale wireless sensor networks represent a new generation of real-time embedded systems with significantly different communication constraints from traditional networked sys...
Chenyang Lu, Brian M. Blum, Tarek F. Abdelzaher, J...
In ubiquitous computing environments, contextawareness is one of the most important research topics. Computers embedded in our surrounding can extract information about a user, an...
The Internet can be used to promote collaborative learning among students. However, since the web-based collaborative learning environment relies entirely on the availability of c...