A power control algorithm based on non-cooperative game in cognitive radio
Xin Luo · Application of Electronic Technique · 2008
Aiming at the power control in cognitive radio,a new utility function is presented based on a non-cooperative game model and the existence and uniqueness of the Nash equilibrium in the game are proved.A distributed power control is designed,and its convergence is proved.Several parameters' effects on the system performance are discussed.Simulations demonstrate that this algorithm can control the secondary users' power effectively.Compared with the SINR-balance algorithm and Koskie-Gajic algorithm,this algorithm not only guarantees the secondary users' QoS,but also increases the system throughput.