Sciweavers

422 search results - page 13 / 85
» On the Wake-Up Problem in Radio Networks
Sort
View
TWC
2010
13 years 1 months ago
Optimal multi-channel cooperative sensing in cognitive radio networks
In this paper, optimal multi-channel cooperative sensing strategies in cognitive radio networks are investigated. A cognitive radio network with multiple potential channels is cons...
Rongfei Fan, Hai Jiang
ICASSP
2011
IEEE
12 years 10 months ago
Optimal transmission strategies for channel capture mitigation in Cognitive Radio Networks
Abstract—Temporal Dynamic Spectrum Access (DSA) in Cognitive Radio Networks exploits time gaps between the primary users transmissions. In this work, the fundamental performance ...
Yingxi Liu, Nikhil Kundargi, Ahmed H. Tewfik
ICASSP
2011
IEEE
12 years 10 months ago
Robust secondary multicast transmit beamforming for cognitive radio networks under imperfect channel state information
Consider a robust downlink beamforming optimization problem for secondary multicast transmission in a multiple-input multiple-output (MIMO) spectrum sharing cognitive radio (CR) n...
Yongwei Huang, Qiang Li, Wing-Kin Ma, Shuzhong Zha...
SIROCCO
2008
13 years 8 months ago
Fast Radio Broadcasting with Advice
We study deterministic broadcasting in radio networks in the recently introduced framework of network algorithms with advice. We concentrate on the problem of trade-offs between t...
David Ilcinkas, Dariusz R. Kowalski, Andrzej Pelc
ESA
2004
Springer
97views Algorithms» more  ESA 2004»
14 years 3 days ago
Radio Network Clustering from Scratch
Abstract. We propose a novel randomized algorithm for computing a dominating set based clustering in wireless ad-hoc and sensor networks. The algorithm works under a model which ca...
Fabian Kuhn, Thomas Moscibroda, Roger Wattenhofer