Journal of Beijing University of Posts and Telecommunications

  • EI核心期刊

JOURNAL OF BEIJING UNIVERSITY OF POSTS AND TELECOM ›› 2012, Vol. 35 ›› Issue (5): 31-35.doi: 10.13190/jbupt.201205.31.liuzy

• Papers • Previous Articles     Next Articles

Energy Detection about Broadband Signal without Priori Information of Interference System

LIU Zi-yang, PENG Tao, GUO Hai-bo, WANG Wen-bo   

  1. 1. Key Laboratory of Universal Wireless Communication(Beijing University of Posts and Telecommunications), Ministry of Education2. Communication Examination Division, Patent Examination Cooperation Center of the Patent Office, State Intellectual Property Office
  • Received:2012-02-15 Revised:2012-05-18 Online:2012-10-28 Published:2012-07-06
  • Contact: Liu Ziyang E-mail:liuziyang243@gmail.com

Abstract:

In order to improve the performance of energy detection on broadband signals without priori information of interference system, a broadband spectrum model based on sampling is set up, and the closed-form of the decision threshold based on the minimum-error-rate criteria is derived. Simulation shows that the minimum error rate detection outperforms traditional narrowband signal detection in broadband scenario in absence of priori information.

Key words: cognitive radio, energy detection, broadband, optimal threshold

CLC Number: