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ICC
2007
IEEE
109views Communications» more  ICC 2007»
16 years 1 months ago
VoIP Performance in SIP-Based Vertical Handovers Between WLAN and GPRS/UMTS Networks
—This paper experimentally analyzes the handover performance of VoIP sessions in a wireless overlay of 802.11 WLANs and GPRS/UMTS networks when mobility is handled at the applica...
Marc Cardenete-Suriol, Josep Mangues-Bafalluy, Mar...
TRIDENTCOM
2010
IEEE
15 years 4 months ago
Polymorphic Ubiquitous Network Testbed RUBIQ
In this paper we present RUBIQ, a polymorphic ubiquitous network testbed. RUBIQ works on StarBED, which is a network testbed consisting of hundreds of PCs connected to each other. ...
Junya Nakata, Razvan Beuran, Takashi Okada, Ken-ic...
CHI
2001
ACM
16 years 7 months ago
ConNexus to awarenex: extending awareness to mobile users
We explored the use of awareness information to facilitate communication by developing a series of prototypes. The ConNexus prototype integrates awareness information, instant mes...
John C. Tang, Nicole Yankelovich, James Begole, Ma...
VTC
2008
IEEE
129views Communications» more  VTC 2008»
16 years 1 months ago
Cooperative Communication in Space-Time-Frequency Coded MB-OFDM UWB
Abstract— Though cooperative communication has been intensively examined for general wireless systems, such as mobile and ad-hoc networks, it has been almost unexplored in the ca...
Le Chung Tran, Alfred Mertins, Tadeusz A. Wysocki
MOBISYS
2009
ACM
16 years 7 months ago
A framework of energy efficient mobile sensing for automatic user state recognition
Urban sensing, participatory sensing, and user activity recognition can provide rich contextual information for mobile applications such as social networking and location-based se...
Yi Wang, Jialiu Lin, Murali Annavaram, Quinn Jacob...