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Cognitive radio transmission under QoS constraints and interference limitations
EURASIP Journal on Wireless Communications and Networking
In this article, the performance of cognitive transmission under quality of service (QoS) constraints and interference limitations is studied. Cognitive secondary users are assumed to initially perform sensing over multiple frequency bands (or equivalently channels) to detect the activities of primary users. Subsequently, they perform transmission in a single channel at variable power and rates depending on the channel sensing decisions and the fading environment. A state transition model isdoi:10.1186/1687-1499-2012-301 fatcat:y4xyhrgnargvljnouqahx36hbe