Small Sample Size Performance of the Energy Detector

被引：34

作者：

Rugini, Luca ^{[1
]}

Banelli, Paolo ^{[1
]}

Leus, Geert ^{[2
]}

机构：

[1] Univ Perugia, Dept Engn, I-06125 Perugia, Italy

[2] Delft Univ Technol, EEMCS Fac, NL-2628 CD Delft, Netherlands

来源：

IEEE COMMUNICATIONS LETTERS | 2013年 / 17卷 / 09期

关键词：

Cooperative sensing; energy detector; Gaussian approximation; small sample size; spectrum sensing;

D O I：

10.1109/LCOMM.2013.080813.131399

中图分类号：

TN [电子技术、通信技术];

学科分类号：

0809 ;

摘要：

We examine the small sample size performance of the energy detector for spectrum sensing in AWGN. By making use of the cube-of-Gaussian approximation of chi-squared random variables, we derive a novel, simple, and accurate analytical expression for the minimum number of samples required to achieve a desired probability of detection and false alarm. This way, the number of samples can be calculated by the energy detector with low complexity. We also propose a useful approximation for the performance of cooperative energy detection.

引用

页码：1814 / 1817

页数：4

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