摘要
将路径损耗应用到可变步长的功率控制算法中,使得闭环功率控制的控制精度和收敛速度有了更大的提高,并加入依据下行信道的质量估计上行信道的损耗和噪声干扰量的机制,从而对MS的发射功率进行迅速调整,然后利用闭环功率控制进一步调节,最后仿真对比3种算法的控制精度和收敛性速度。仿真结果表明改进后的变步长功率控制算法具有更好的功率控制精度和收敛速度。
In this article, the path loss was considered in the variable step power control algorithm. By estimating the uplink channel loss and the noise amount, we could adjust the transmission power of MS quickly, and further adjust the closed loop power control. The control precise and convergence speeds of three algorithms were compared by simulation. The results show the improved variable step control algorithm can make the control accuracy and convergence speed greatly enhanced.
出处
《机械工程与自动化》
2012年第6期66-68,共3页
Mechanical Engineering & Automation
