293 search results - page 43 / 59 » Opportunistic Multiple Access for Cognitive Radio Networks |
ICASSP
2010
IEEE
14 years 9 months ago
2010
IEEE
One of the key problems in cognitive radio (CR) is the detection of primary activity in order to determine which parts of the spectrum are available for opportunistic access. This...
INFOCOM
2006
IEEE
15 years 3 months ago
2006
IEEE
—Wireless local area network (WLAN) systems are widely implemented today to provide hot spot coverage. Operated typically in an infrastructure mode, each WLAN is managed by an ac...
GLOBECOM
2006
IEEE
15 years 3 months ago
2006
IEEE
— In this paper, we address the impact of different access strategies in ad hoc networks with multiple antennas and MIMO communications. We employ a cross–layer designed MAC pr...
INFOCOM
2009
IEEE
15 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 (...
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ISICT
2003
14 years 10 months ago
2003
The next generation of mobile networks will utilise multiple radio access technologies. These heterogeneous wireless networks will enable the user to seamlessly roam between the d...