: Public transport plays an important role in our society which is characterized by mobility, individuality, comfort and ecological constraints. It is common opinion that public tr...
The widespread adoption of automated fare collection (AFC) systems by public transport authorities around the world means that, increasingly, people carry and use passive sensors ...
Bluetooth technology offers the potential for low-cost, broadband wireless access for a range of mobile and portable devices. It can thus provide for ubiquitous computing across a...
Authenticating mobile computing users can require a significant amount of processing and communications resources— particularly when protocols based on public key encryption are...
The potential for sensor-enabled mobile devices to proactively present information when and where users need it ranks among the greatest promises of ubiquitous computing. Unfortun...