146 search results - page 27 / 30 » An Improved Low Computation Cost User Authentication Scheme ... |
UIC
2010
Springer
13 years 5 months ago
2010
Springer
In this paper, we present a real-time obstacle detection system for the mobility improvement for the visually impaired using a handheld Smartphone. Though there are many existing a...
GIS
2010
ACM
13 years 5 months ago
2010
ACM
Spatial Alarms are reminders for mobile users upon their arrival of certain spatial location of interest. Spatial alarm processing requires meeting two demanding objectives: high ...
ICC
2007
IEEE
14 years 1 months ago
2007
IEEE
Abstract— Adding SDMA capabilities to modern wireless communication systems like IEEE 802.16 WiMAX promises high system capacity gains but raises the problem of combining orthogo...
UIC
2007
Springer
14 years 1 months ago
2007
Springer
Internet and multimedia services are widely-provided in All-IP based networks. There has been growing demand for mobile users to get those services. The Wireless Mesh Network (WMN...
SENSYS
2004
ACM
14 years 1 months ago
2004
ACM
Wireless sensor networks offer the potential to span and monitor large geographical areas inexpensively. Sensors, however, have significant power constraint (battery life), makin...