Power Control Algorithm for Cognitive Radio Based on Interference Temperature
Zhang Xin-chun · Modern Electronics Technique · 2010
Based on the interference temperature model,the problem that the cognitive radio users and owners should meet their own quality of customer servicewhen sharing spectrum is changed into a non-linear power control optimization problem.A global optimum power allocation algorithm is explored based on the iterative algorithms and Lagrangian theory.Theoretical analysis and simulation indicate that the algorithm both can satisfy the primary user of the interference temperature tolerance,and make users access to a good cognitive noise interference ratio,increasing the system throughput.