The Analysis and Improvement of Linearly Interpolative Channel Estimation in OFDM System
In this paper, we discuss the properties of channel estimation with 1-D linear interpolation filter in OFDM systems from the viewpoint of upsampling in discrete-time signal processing. We found that half of the passband of frequency response of 1-D linear interpolation filter is wasted for interpolating the channel frequency response. The new interpolation filter coefficient is the product of an appropriate linear phase factor and a linear interpolation coefficient The product causes shifting the frequency response of new interpolation filter, and the appropriate shifting of frequency response will make the passband more effectively. We proposed a simple method to improve 1-D linear interpolation.
Yung-An Kao Po-Heng Song
Department of Electrical Engineering Chang Gung University, Tao-yuan, Taiwan, ROC
国际会议
2012 4th International High Speed Intelligent Communication Forum(2012年国际高速智能通信论坛 HSIC2012)
南京
英文
32-35
2012-05-17（万方平台首次上网日期，不代表论文的发表时间）