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GLOBECOM
2006
IEEE
14 years 1 months ago
A New Framework for Indicating Terminal Capabilities in the IP Multimedia Subsystem
The standardization of the IMS as a multi-access network implies that it can be accessed by different classes of terminals. Even at the heart of the same class of terminals (mobile...
Bassam El Saghir, Noël Crespi
INFOCOM
2002
IEEE
14 years 15 days ago
Performance Optimization of VoIP Calls over Wireless Links Using H.323 Protocol
—Intelligent mobile terminals (or users) of next generation wireless networks are expected to initiate voice over IP (VoIP) calls using session set-up protocols like H.323 or SIP...
Sajal K. Das, Sanjoy K. Sen, Naveen K. Kakani
ASSETS
2008
ACM
13 years 9 months ago
Computer vision-based clear path guidance for blind wheelchair users
We describe a system for guiding blind and visually impaired wheelchair users along a clear path that uses computer vision to sense the presence of obstacles or other terrain feat...
Volodymyr Ivanchenko, James Coughlan, William Gerr...
MOBISYS
2011
ACM
12 years 10 months ago
Indoor location sensing using geo-magnetism
We present an indoor positioning system that measures location using disturbances of the Earth's magnetic field caused by structural steel elements in a building. The presenc...
Jaewoo Chung, Matt Donahoe, Chris Schmandt, Ig-Jae...
CHI
2009
ACM
14 years 7 days ago
A tag in the hand: supporting semantic, social, and spatial navigation in museums
Designers of mobile, social systems must carefully think about how to help their users manage spatial, semantic, and social modes of navigation. Here, we describe our deployment o...
Dan Cosley, Jonathan Baxter, Soyoung Lee, Brian Al...