2575 search results - page 495 / 515 » Car-Park Management using Wireless Sensor Networks |
WWW
2007
ACM
14 years 8 months ago
2007
ACM
Continuous queries are used to monitor changes to time varying data and to provide results useful for online decision making. Typically a user desires to obtain the value of some ...
MOBICOM
2010
ACM
13 years 7 months ago
2010
ACM
In this work, we study physical-layer identification of passive UHF RFID tags. We collect signals from a population of 70 tags using a purpose-built reader and we analyze time dom...
OSDI
2004
ACM
14 years 7 months ago
2004
ACM
A fundamental vision driving pervasive computing research is access to personal and shared data anywhere at anytime. In many ways, this vision is close to being realized. Wireless...
MOBISYS
2007
ACM
14 years 7 months ago
2007
ACM
We present rendezvous-based access control for access control in the pre-hospital environment. Rendezvous-based access control is a simple cryptographic access control method that...
ICDCSW
2003
IEEE
14 years 19 days ago
2003
IEEE
We present an integrated dual approach to reduce power consumption in infrastructure-mode 802.11 wireless LANs. A novel distributed power control algorithm adaptively adjusts the ...