Research On Power Allocation In Cooperation Communication Based On Game Theory

The rapid development of wireless communication systems in the world increased demand of service from human being. In order to meet the requirements of high-speed multimedia communications, future wireless communications are required to adopt more advanced algorithms and techniques, not only to increase the transmission rate, but also to ensure that the different quality of service is qualified. Cooperative communication is developing and effectively method, which can improve the spectrum efficiency and robustness of wireless systems in recent years. Recently, it draws widely the attention of academic.Game theory is to study the rational decision-making behavior of the players which are interdependent and mutual influential, as well as the results of the equilibriums. In equilibriums, each player's utility function depends not only on the strategy of his own choosing, but also on other participants chosen strategy. Therefore it studies a matter of individual choice around which is mutual external economic conditions. After a long period of rapid development, game theory achieved great results both in theoretical research and in applied research. Stackelberg game model as the tool for the analysis of leader-follower structure has also been a great development.In this research Stackelberg game model is introduced to the wireless communication system, and applied to the radio resource management problems. The main innovation of the following three studies:1. Analysis of the existing cooperative communications technology, modeling a single relay and total power limited system. Focus on analysis for the multi-service of wireless communication, which are divided into two classes, namely real-time services and non-real-time services. The characteristics of different services require different power allocation optimizations. 2. Game theory was introduced to radio resource management algorithms. In solving the problem of radio resource management game theory make resources maximize their potential effective value. Describe Stackelberg model which has leader-follower structure. And the services of wireless communication system are modeled as leader players and follower players based on Stackelberg. Model the complex problem of multi-user multi-service power allocation in cooperation communication, so as to provide a theoretical basis to solve this problem.3. After modeling the problem of power allocation, the two-level programming in the field of multi-objective mathematical programming is introduced. Because of a huge number of users in this problem, we use more precise Chao optimal algorithm to solve it.