Broadband Spectrum Survey Measurements for Cognitive Radio Applications

被引：0
作者：
Urban, Robert [1 ]
Korinek, Tomas [1 ]
Pechac, Pavel [1 ]
机构：
[1] Czech Tech Univ, Fac Elect Engn, Dept Electromagnet Field, Prague 16627, Czech Republic
来源：
RADIOENGINEERING | 2012年 / 21卷 / 04期
关键词：
Spectrum survey; spectral measurement; cognitive radio; spectrum allocation;
D O I：
暂无
中图分类号：
TM [电工技术]; TN [电子技术、通信技术];
学科分类号：
0808 ; 0809 ;
摘要：
It is well known that the existing spectrum licensing system results in a gross under-utilization of the frequency spectrum. Spectrum background measurements - spectrum surveys - provide useful data for spectrum regulation, planning or finding frequency niches for spectrum sharing. Dynamic spectrum sharing as a main goal of cognitive radio (CR) is the modern option on how to optimize usage of the frequency spectrum. A spectrum survey measurement system is introduced with results obtained from a variety of markedly different scenarios allowing us, unlike other studies, to focus on wideband and fast spectrum scans. The sensitivity of the receiver is no worse than -113 dBm in the whole band. The utilization of the frequency spectrum is analyzed to prove its under-utilization and to show spectrum sharing opportunities. This was shown to be true in the frequency band higher than 2.5 GHz. A comparison with other spectrum survey campaigns is provided.
引用
收藏
页码：1101 / 1109
页数：9
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