非合作博弈下功率与速率联合控制算法研究

针对已有的基于非合作博弈的功率控制算法中认知用户公平性的不足,提出了对认知用户的发射功率和传输速率进行联合控制的算法,在代价函数中设计了基于传输速率公平性的惩罚因子,同时还考虑了认知用户受到的干扰,与固定认知用户传输速率的功率控制算法进行仿真对比表明,在对认知用户发射功率进行调整的同时,通过调整认知用户的传输速率,能使认知用户在传输速率的分配上与目标传输速率的距离更小,更加体现了认知用户之间的公平性.

Non-cooperative game of joint power and rate control algorithm

The existing algorithm for the power control algorithm based on non-cooperative competition exists fairness problems between the second users, so this paper puts forward an algorithm in which the transmission power and the transmission rate are controlled at the same time. In the cost function a penalty factor based on transmission rate fairness is put forward, at the same time the second user''interference is considered. Simulation comparison of the power control algorithm with fixed second user'' transmission rate shows that the second user''transmission rate and transmission power can make the distance between the transmission rate and the target transmission rate smaller, and can reflect the fairness among the second users.