摘要
本文提出了根据信道衰落速率的检测值 ,进行信道估计积分长度的自适应调整 ,以及专用导码 (Pilot)功率动态配置的方法 .分析和仿真结果显示 ,信道估计积分长度的自适应调整可充分利用导码信号功率 ,提高信道估计的精度 ,同时拓展了移动台正常工作的运动速度范围 .专用导码功率依信道变化速率动态调整 ,使得在保证信道估计精度的前提下 ,降低系统中专用导码平均功率 ,达到提高系统容量的目的 .
In this paper,adaptive adjustment of pilot correlator integral duration (AAPCID) and dedicated pilot power (AADPP) based on the channel fading rate detection is proposed.Analysis and simulation results indicate that AAPCID take use of the pilot power more efficiently to improve the accuracy of channel estimation,and extends the range of speed in which the mobile station can work well.AADPP is a novel method to reduce the mean of dedicated pilot power,so that the system capacity is increased remarkably when the low data rate service is provided.
出处
《电子学报》
EI
CAS
CSCD
北大核心
1999年第S1期61-64,共4页
Acta Electronica Sinica
基金
国家杰出青年基金!(No .CNSF6772 50 0 1)
