828 search results - page 142 / 166 » Access Control in Location-Based Services |
ICC
2007
IEEE
14 years 2 months ago
2007
IEEE
—The first HSDPA (High-Speed Downlink Packet Access) networks have been recently deployed for operational use. We evaluate and compare live HSDPA operational network performance ...
CCS
2008
ACM
13 years 10 months ago
2008
ACM
In extraordinary situations, certain individuals may require access to information for which they are not normally authorized. For example, to facilitate rescue of people trapped ...
JSAC
2008
13 years 8 months ago
2008
Abstract--The concept of cognitive radio (or secondary spectrum access) is currently under investigation as a promising paradigm to achieve efficient use of the frequency resource ...
NETWORK
2008
13 years 8 months ago
2008
In recent years, remarkable market competition and economy of scale has resulted in the price erosion of wireless devices for consumer electronics. Especially for wireless data ne...
JSAC
2010
13 years 7 months ago
2010
—To reserve or not for bursty video traffic over wireless access networks has been a long-debated issue. For uplink transmissions in infrastructure-based wireless networks and p...