Signal Bandwidth Estimation with Energy Detector Based on Windowed FFT for Cognitive Radio System

被引：0
|
作者：
Tamayama, Kensaku [1 ]
Ohta, Mai [1 ]
Taromaru, Makoto [1 ]
机构：
[1] Fukuoka Univ, Dept Elect & Comp Sci, Jonan Ku, 8-19-1 Nanakuma, Fukuoka, Japan
来源：
2015 INTERNATIONAL CONFERENCE ON ICT CONVERGENCE (ICTC) | 2015年
关键词：
Cognitive radio system; spectrum sensing; energy detection; windowed FFT;
D O I：
暂无
中图分类号：
TP [自动化技术、计算机技术];
学科分类号：
0812 ;
摘要：
We evaluate an estimation scheme of unknown signal's bandwidth estimation with an energy detector based on a windowed fast Fourier transform (FFT) for cognitive radio system. When the cognitive node obtains the spectrum sensing results after a received time domain signal is processed with FFT, the detection results have a detection error at the adjacent FFT bins of the received signal frequency with high probability because of an energy leakage. Therefore, a window function is used for reducing the effect of the energy leakage. In this paper, we evaluate the spectrum sensing performance considering influences of the energy leakage and windowed waveform.
引用
收藏
页码：435 / 437
页数：3
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