A cognitive radio power allocation algorithm based on the interference temperature model
Xiaoguang Wang · Applied science and technology · 2010
The interference temperature model is an important model for spectrum allocation of cognition radio(CR).However,there is partial interference in this model.To solve this problem,a power thresholds model based on MIME-OFDM is adopted to accomplish spectrum adaptation for unlicensed users.The algorithm has slow convergence when the estimated value is far from the target.This paper presents a mixed dichotomy to solve the problem.Simulation results indicate that the propositional scheme solves the partial interference problem of the interference temperature model and the system performance is further improved via using MIMO technique.The proposed algorithm reduces the computational complexity and improves the spectrum utilization efficiency.