摘要
介绍一种适合于分组交换 WCDMA无线网络的 Kalman滤波器功率控制方法 .当数据包连续传送时 ,信道干扰具有时域上的相关性 ,Kalm an滤波器可用来预测干扰功率 .通过干扰预测和路径增益的估计 ,可确定合适的符合 SINR要求的发送功率 .给出了仿真结果 ,结果表明 ,使用 Kalman滤波器的功率控制方法可以提高功率控制的性能 .
A Kalman filter method for power control is recommened for broadband packet switched CDMA wireless networks. Temporal correlation of interference can be observed when data are being sent continuously by transmitters. A Kalman filter can then be used to predict interference power. Based on the predicted interference and estimated path gain between the transmitter and receiver, transmission power is determined to achieve the desired signal to interference plus noise ratio(SINR). Simulation results reveal that the Kalman filter method for power control provides a performance improvement.
出处
《应用科学学报》
CAS
CSCD
2002年第4期387-390,共4页
Journal of Applied Sciences
