366 search results - page 58 / 74 » A Door Access Control System with Mobile Phones |
106
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HICSS
1999
IEEE
15 years 2 months ago
1999
IEEE
In this paper, we motivate the importance of the field of mobile computing and survey current practical and formal approaches. We argue that the existing formalisms are not suffic...
CDC
2009
IEEE
15 years 2 months ago
2009
IEEE
Abstract— In WiFi networks, mobile nodes compete for accessing a shared channel by means of a random access protocol called Distributed Coordination Function (DCF). Although this...
113
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MIS
2008
Springer
14 years 9 months ago
2008
Springer
The IEEE 802.16 standard provides a specification for a fixed and mobile broadband wireless access system, offering high data rate transmission of multimedia services with differen...
GROUP
2003
ACM
15 years 3 months ago
2003
ACM
A number of people are exchanging e-mail messages everyday using mobile phones and PDAs. E-mail is useful not only for oneto-one communication but group communication through mail...
MOBISYS
2008
ACM
15 years 9 months ago
2008
ACM
Adaptive transmit power control in 802.11 Wireless LANs (WLANs) on a per-link basis helps increase network capacity and improves battery life of Wifi-enabled mobile devices. Howev...