174 search results - page 28 / 35 » Optimization of Periodic Channel Sensing by Secondary Users ... |
INFOCOM
2008
IEEE
14 years 2 months ago
2008
IEEE
—We consider opportunistic spectrum access (OSA) strategies for a transmitter in a multichannel wireless system, where a channel may or may not be available and the transmitter m...
INFOCOM
2010
IEEE
13 years 5 months ago
2010
IEEE
Abstract-- In this paper, we consider the problem of optimal control for throughput utility maximization in cognitive radio networks with dynamic user arrivals and departures. The ...
ICUMT
2009
13 years 5 months ago
2009
In cognitive radio networks, secondary user (SU) does not have rights to transmit when the primary user (PU) band is occupied, that's why a sensing technique must be done. Rec...
JSAC
2011
13 years 2 months ago
2011
Abstract—Cognitive radio (CR) technology enables the opportunistic use of the vacant licensed frequency bands, thereby improving the spectrum utilization. However, the CR operati...
INFOCOM
2010
IEEE
13 years 6 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...