Features detection assisted spectrum sensing in wireless regional area network cognitive radio systems

研究成果: Article同行評審

7 引文 斯高帕斯(Scopus)

摘要

Spectrum sensing is a key enabling technique for implementing cognitive radio (CR) networks. Based on the detection of primary users' signals, a CR can fully exploit wireless radio resources, thus to increase spectrum efficiency and allow opportunistic transmissions for secondary users. This work presents a spectrum sensing approach for its applications in a wireless regional area network (WRAN) based on features detection of advanced television systems committee (ATSC) digital TV and WRAN signals over a Rayleigh fading channel. The scheme aims at detecting and identifying both ATSC and WRAN signals. To improve spectrum sensing performance in low-signal-to-noise ratio (SNR) regions, the characteristics of both ATSC and WRAN signals are exploited in spectrum sensing algorithms based on a correlation-based feature identification approach. In this study, real working scenarios of a WRAN CR network are considered. The effectiveness of the proposed detector has been verified by simulations.

原文English
頁(從 - 到)810-818
頁數9
期刊IET Communications
6
發行號8
DOIs
出版狀態Published - 2012 五月 22

All Science Journal Classification (ASJC) codes

  • 電腦科學應用
  • 電氣與電子工程

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