McGraw-Hill's Encyclopedia of Networking and Telecommunications
McGraw-Hill's Encyclopedia of Networking and Telecommunications
Transmission power control for multiple access wireless packet networks
LCN '00 Proceedings of the 25th Annual IEEE Conference on Local Computer Networks
A survey on power control issues in wireless sensor networks
IEEE Communications Surveys & Tutorials
Joint power control and beamforming for cognitive radio networks
IEEE Transactions on Wireless Communications
On cognitive radio networks with opportunistic power control strategies in fading channels
IEEE Transactions on Wireless Communications
Bandwidth partitioning in decentralized wireless networks
IEEE Transactions on Wireless Communications - Part 2
IEEE Transactions on Information Theory
Routing in ad hoc networks: a case for long hops
IEEE Communications Magazine
Transmission power control in wireless ad hoc networks: challenges, solutions and open issues
IEEE Network: The Magazine of Global Internetworking
Connectivity of cognitive radio networks: proximity vs. opportunity
Proceedings of the 2009 ACM workshop on Cognitive radio networks
Stochastic geometry and random graphs for the analysis and design of wireless networks
IEEE Journal on Selected Areas in Communications - Special issue on stochastic geometry and random graphs for the analysis and designof wireless networks
Exploiting buffers in cognitive multi-relay systems for delay-sensitive applications
WiOPT'09 Proceedings of the 7th international conference on Modeling and Optimization in Mobile, Ad Hoc, and Wireless Networks
Distributed power control for cognitive user access based on primary link control feedback
INFOCOM'10 Proceedings of the 29th conference on Information communications
Minimum-energy multicast tree in cognitive radio networks
Asilomar'09 Proceedings of the 43rd Asilomar conference on Signals, systems and computers
Differential Game Based Cooperative Power Control in Cognitive Radio Networks
Wireless Personal Communications: An International Journal
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We consider power control in cognitive radio networks where secondary users identify and exploit instantaneous and local spectrum opportunities without causing unacceptable interference to primary users. We qualitatively characterize the impacts of the transmission power of secondary users on the occurrence of spectrum opportunities and the reliability of opportunity detection. Based on a Poisson model of the primary network, we quantify these impacts by showing that (i) the probability of spectrum opportunity decreases exponentially with the transmission power of secondary users, where the exponential decay constant is given by the traffic load of primary users; (ii) reliable opportunity detection is achieved in the two extreme regimes in terms of the ratio between the transmission power of secondary users and that of primary users. Such analytical characterizations allow us to study power control for optimal transport throughput under constraints on the interference to primary users. Furthermore, we reveal the difference between detecting primary signals and detecting spectrum opportunities, and demonstrate the complex relationship between physical layer spectrum sensing and MAC layer throughput. The dependency of this PHY-MAC interaction on the application type and the use of handshake signaling such as RTS/CTS is also illustrated.