Energy Detection about Broadband Signal without Priori Information of Interference System

doi:10.13190/jbupt.201205.31.liuzy

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

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Energy Detection about Broadband Signal without Priori Information of Interference System

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

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

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:

TN929.53

LIU Zi-yang, PENG Tao, GUO Hai-bo, WANG Wen-bo. Energy Detection about Broadband Signal without Priori Information of Interference System[J]. JOURNAL OF BEIJING UNIVERSITY OF POSTS AND TELECOM, 2012, 35(5): 31-35.

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Energy Detection about Broadband Signal without Priori Information of Interference System

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