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| Kalman滤波器在WCDMA功率控制中的应用 | |
| 引用本文： | 杨维,程时昕. Kalman滤波器在WCDMA功率控制中的应用[J]. 应用科学学报, 2002, 20(4): 387-390 |
| 作者姓名： | 杨维 程时昕 |
| 作者单位： | 东南大学移动通信国家重点实验室, 江苏南京 210096 |
| 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,Kalman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. |
| 关 键 词： | 移动通信 Kalman滤波器 功率控制 |
| 文章编号： | 0255-8297(2002)04-0387-04 |
| 收稿时间： | 2001-09-25 |
| 修稿时间： | 2001-12-08 |
A Kalman-Filter Method for Power Control in WCDMA |
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| YANG Wei,CHENG Shi xin. A Kalman-Filter Method for Power Control in WCDMA[J]. Journal of Applied Sciences, 2002, 20(4): 387-390 | |
| Authors: | YANG Wei CHENG Shi xin |
| Affiliation: | National Mobile Communications Research Laboratory, Southeast University, Nanjing 210096, China |
| Abstract: | 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. |
| Keywords: | mobile communications Kalman filter transmit power control |
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