131 search results - page 2 / 27 » Optimal Sensing-Transmission Structure for Dynamic Spectrum ... |
INFOCOM
2012
IEEE
11 years 7 months ago
2012
IEEE
—In this paper we develop an adaptive learning algorithm which is approximately optimal for an opportunistic spectrum access (OSA) problem with polynomial complexity. In this OSA...
MOBIHOC
2009
ACM
13 years 11 months ago
2009
ACM
Spectrum is a critical yet scarce resource and it has been shown that dynamic spectrum access can significantly improve spectrum utilization. To achieve this, it is important to ...
ICC
2007
IEEE
13 years 11 months ago
2007
IEEE
We consider opportunistic spectrum access for secondary users over multiple channels whose occupancy by primary users is modeled as discrete-time Markov processes. Due to hardware...
INFOCOM
2011
IEEE
12 years 8 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 ...
WIOPT
2010
IEEE
13 years 3 months ago
2010
IEEE
We consider the problem of providing opportunistic spectrum access to secondary users in wireless cellular networks. From the standpoint of spectrum license holders, achieving ben...