253 search results - page 10 / 51 » Cognitive radio techniques for wide area networks |
JSAC
2011
13 years 2 months ago
2011
—We analyze the multihop delay of ad hoc cognitive radio networks, where the transmission delay of each hop consists of the propagation delay and the waiting time for the availab...
ICC
2007
IEEE
14 years 1 months ago
2007
IEEE
—Cognitive radio (CR) is seen as one of the revolutionary techniques for future spectrum utilization. The first and probably the most challenging task for CR is to detect/sense t...
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 ...
ICASSP
2010
IEEE
13 years 7 months ago
2010
IEEE
— In cognitive radio, spectrum sensing is a key component to detect spectrum holes (i.e., channels not used by any primary users). Collaborative spectrum sensing among the cognit...
WWW
2004
ACM
14 years 8 months ago
2004
ACM
Access and retrieval of meteorological and oceanographic data from heterogeneous sources in a distributed system presents many issues. Effective bandwidth utilization is important...