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Power Adaptation for Cognitive Radio Systems Under an Average SINR Loss Constraint in the Absence of Path Loss Information
2013
Wireless personal communications
An upper bound is derived on the capacity of a cognitive radio (CR) system by considering the effects of path loss and log-normal shadowing simultaneously for a single-cell network. Assuming that the cognitive radio is informed only of the shadow fading between the secondary (cognitive) transmitter and primary receiver, the capacity is achieved via the water-filling power allocation strategy under an average primary signal to secondary interference plus noise ratio (SINR) loss constraint.
doi:10.1007/s11277-013-1499-8
fatcat:xtxp6t7f75dnjdwhjvzmbzg6jq