Performance evaluation of two-dimensional interpolations on OFDM channel estimation

被引：0
|
作者：
Khanshan, Amir H. [1 ]
Amindavar, Hamidreza [2 ]
机构：
[1] IAU, Sci & Res Branch, Tehran, Iran
[2] Amirkabir Univ Technol, Tehran, Iran
来源：
2007 AUSTRALASIANTELECOMMUNICATION NETWORKS AND APPLICATIONS CONFERENCE | 2007年
关键词：
Two-dimensional interpolation; OFDM channel estimation; fast fading channels;
D O I：
暂无
中图分类号：
TP3 [计算技术、计算机技术];
学科分类号：
0812 ;
摘要：
Two-dimensional (2D) interpolation techniques for pilot-symbol-aided (PSA) OFDM channel estimation are investigated. The best linear interpolator/filter in terms of minimizing mean square error (MSE) is 2D Wiener filter. However, there are other (non-linear) 2D interpolation techniques such as Nearest Neighborhood (NN), bilinear, bicubic and 2D cubic spline which are frequently used in other applications such as in image processing. We will apply these interpolation techniques for OFDM channel estimation in fast fading wireless channels and compare their performances with two-dimensional Wiener filtering. The suitable distance of pilot points are considered. We have also compared the performance of system for different Doppler frequencies.
引用
收藏
页码：405 / +
页数：2
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