NDLI: Entropy based spectrum sensing in cognitive radio

Content Provider	IEEE Xplore Digital Library
Author	Xiaofei Chen Nagaraj, S.
Copyright Year	2008
Description	Author affiliation: Electr. & Comput. Eng. Dept, San Diego State Univ., San Diego, CA (Xiaofei Chen; Nagaraj, S.)
Abstract	Cognitive radio (CR) is defined as an intelligent wireless communication, which has the capability of sensing and utilizing the underutilized spectrum resources. One of the key problems is how to efficiently and successfully detect the spectrum hole. In this paper, an entropy based technique for detection of primary users in cognitive radio networks with unknown noise and interference levels will be discussed. The likelihood ratio test will be used to examine the presence or absence of the primary user by comparing the empirical entropy of the received signal to a suitable threshold. In this paper, we will assume the primary user's signaling waveform is known by the cognitive radios and the matched-filter based detection will be specifically considered.
Starting Page	57
Ending Page	61
File Size	146271
Page Count	5
File Format	PDF
ISBN	9781424418695
ISSN	19345070
DOI	10.1109/WTS.2008.4547544
Language	English
Publisher	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Publisher Date	2008-04-24
Publisher Place	USA
Access Restriction	Subscribed
Rights Holder	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Subject Keyword	Wireless communication Cognitive Radio Impedance matching Spectrum Sensing Detectors Interference Chromium Entropy Cognitive radio Testing Noise level Context modeling
Content Type	Text
Resource Type	Article

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4	Project PI / Joint PI	Principal Investigator and Joint Principal Investigators of the project	Dr. B. Sutradhar bsutra@ndl.gov.in Prof. Saswat Chakrabarti will be added soon
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