104 search results - page 15 / 21 » Sensing-based opportunistic channel access |
SECON
2010
IEEE
13 years 7 months ago
2010
IEEE
Wireless LANs have been widely deployed as edge access networks in home/office/commercial buildings, providing connection to the Internet. Therefore, performance of end-toend conne...
GLOBECOM
2007
IEEE
13 years 11 months ago
2007
IEEE
—Open spectrum systems allow unlicensed secondary users equipped with cognitive radio to opportunistically access the spectrum underutilized by primary users. Cognitive radio has...
INFOCOM
2009
IEEE
14 years 4 months ago
2009
IEEE
Abstract—In this paper, we present MobTorrent, an ondemand, user-driven framework designed for vehicles which have intermittent high speed access to roadside WiFi access points (...
ICC
2007
IEEE
14 years 4 months ago
2007
IEEE
—Opportunistic scheduling in random beamforming maximizes the sum-rate by allocating resources to the users with the best channel condition, thus leveraging on multiuser diversit...
GLOBECOM
2010
IEEE
13 years 7 months ago
2010
IEEE
Abstract--Cognitive radios (CRs) are devices that access spectrum opportunistically taking advantage of unused portions of licensed spectrum. Therefore, depending on the licensed r...