159 search results - page 12 / 32 » A Distributed Optimization Algorithm for Multi-Hop Cognitive... |
TMC
2008
13 years 7 months ago
2008
We consider a scenario in which a wireless sensor network is formed by randomly deploying n sensors to measure some spatial function over a field, with the objective of computing a...
ICASSP
2008
IEEE
14 years 2 months ago
2008
IEEE
The present paper deals with dynamic resource management based on quantized channel state information (CSI) for multi-carrier cognitive radio networks comprising primary and secon...
CORR
2008
Springer
13 years 7 months ago
2008
Springer
We study the problem of dynamic spectrum sensing and access in cognitive radio systems as a partially observed Markov decision process (POMDP). A group of cognitive users cooperati...
MOBIHOC
2009
ACM
14 years 8 months ago
2009
ACM
Cognitive radio networks are emerging as a promising technology for the efficient use of radio spectrum. In these networks, there are two categories of networks on different chann...
GLOBECOM
2007
IEEE
14 years 1 months ago
2007
IEEE
— In this paper, we investigate the channel selection strategy for secondary users in cognitive radio networks. We claim that in order to avoid the costly channel switchings, a s...