136 search results - page 25 / 28 » Secure Billing for Mobile Information Services in UMTS |
GI
2001
Springer
14 years 3 days ago
2001
Springer
—The rapid advances in a wide range of wireless access technologies along with an industry-wide IP-convergence have set up the stage for context-aware computing. The “location...
DOCENG
2011
ACM
12 years 7 months ago
2011
ACM
The growth of mobile phone users has lead to a dramatic increasing of SMS spam messages. In practice, fighting mobile phone spam is difficult by several factors, including the lo...
LOCA
2009
Springer
14 years 2 months ago
2009
Springer
Outdoor location-based services are now prevalent due to advances in mobile technology and GPS. Indoors, however, even coarse location remains unavailable. Bluetooth has been ident...
SEC
2003
13 years 9 months ago
2003
: The public telephone network has been evolving from manually switched wires carrying analog encoded voice of the 19th century to an automatically switched grid of copper-wired, f...
DOCENG
2006
ACM
14 years 1 months ago
2006
ACM
In the recent years, we have witnessed a dramatic increment in the volume of spam email. Other related forms of spam are increasingly revealing as a problem of importance, special...