Joint Power and Rate Control Algorithm Based on Non-cooperative Game-theory
Hai‐Lin Liu · Communications technology · 2010
The users’ transmission power in the CDMA network should be controled,thus not only ensuring the QoS demand of each user,but also decreasing the interference on other user.Meanwhile,the users’ data transmission rate should be controled in order to avoid the congestion.In this paper,the power and rate control is regarded as a non-cooperative game with N users.The utility function is used to denote the satisfaction degree of the service quality for users,while the pricing function to denote the radio resource consumed by the users.So the joint power and rate control algorithm is described as the process for maximizing the net utility function(utility minus pricing).Finally,the combination of global optimal rate and the minimum transmission power in achieving the service quality is obtained.Also,the existence of Nash Equilibrium is confined.