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WCNC
2010
IEEE
13 years 5 months ago
Sensing and Communication Tradeoff for Cognitive Access of Continues-Time Markov Channels
—Dynamic spectrum access (DSA) aims to improve spectrum efficiency via spectrum sensing and optimal spectrum access. An essential component in DSA is the joint design of sensing...
Xin Li, Qianchuan Zhao, Xiaohong Guan, Lang Tong
MOBICOM
2009
ACM
14 years 2 months ago
Revenue maximization and distributed power allocation in cognitive radio networks
Cognitive radio is an enabling technology that allows unlicensed users to opportunistically access the spectrum in order to enhance the spectrum efficiency. In this paper, we cons...
Shaolei Ren, Mihaela van der Schaar
EJWCN
2010
157views more  EJWCN 2010»
13 years 2 months ago
Distributed Power Allocation for Parallel Broadcast Channels with Only Common Information in Cognitive Tactical Radio Networks
A tactical radio network is a radio network in which a transmitter broadcasts the same information to its receivers. In this paper, dynamic spectrum management is studied for multi...
Vincent Le Nir, Bart Scheers
INFOCOM
2010
IEEE
13 years 6 months ago
Multicast Scheduling with Cooperation and Network Coding in Cognitive Radio Networks
—Cognitive Radio Networks (CRNs) have recently emerged as a promising technology to improve spectrum utilization by allowing secondary users to dynamically access idle primary ch...
Jin Jin, Hong Xu, Baochun Li
ICASSP
2011
IEEE
12 years 11 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