Abstract. Mobile and ubiquitous systems require task models for addressing the challenges of adaptivity and situation-aware assistance. Today, both challenges are seen as separate ...
Martin Giersich, Peter Forbrig, Georg Fuchs, Thoma...
The ever increasing mobility of computers has made protection of data on digital storage media an important requirement in a number of applications and situations. GBDE is a stron...
Multiple transmit antennas in a downlink channel can provide tremendous capacity (i.e. multiplexing) gains, even when receivers have only single antennas. However, receiver and tra...
This paper presents the design of a text-entry device that requires only four buttons. Such a device is applicable as the text interface of portable machines and as an interface f...
The development of mobile communication technology and ubiquitous computing paradigm and the emergence of m-healthcare, m-business and m-education services have raised the urgency ...