375 search results - page 5 / 75 » Accessible Capacity of Secondary Users |
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INFOCOM
2011
IEEE
14 years 1 months ago
2011
IEEE
—Dynamic spectrum allocation has proven promising for mitigating the spectrum scarcity problem. In this model, primary users lease chunks of under-utilized spectrum to secondary ...
INFOCOM
2010
IEEE
14 years 8 months ago
2010
IEEE
Abstract—The problem of cooperative allocation among multiple secondary users to maximize cognitive system throughput is considered. The channel availability statistics are initi...
GLOBECOM
2007
IEEE
15 years 4 months ago
2007
IEEE
We consider a cognitive radio system where the secondary transmitter varies its transmit power based on all the information available from the spectrum sensor. The operation of th...
INFOCOM
2010
IEEE
14 years 8 months ago
2010
IEEE
We study the problem of finding the least-priced path (LPP) between a source and a destination in opportunistic spectrum access (OSA) networks. This problem is motivated by econo...
ICC
2009
IEEE
14 years 7 months ago
2009
IEEE
Abstract--By using cognitive radio technology, opportunistic spectrum access has the potential to solve the underused spectrum problem. In this paper, we employ class-based call ad...