NDLI: A Novel Active Spectrum Sensing Scheme for Cognitive MB-OFDM UWB Radio

Content Provider	IEEE Xplore Digital Library
Author	Qi Liu Luyong Zhang Zheng Zhou Yabin Ye
Copyright Year	2008
Description	Author affiliation: Key Lab. of Universal Wireless Commun., Beijing Univ. of Posts & Telecommun., Beijing (Qi Liu; Luyong Zhang; Zheng Zhou)
Abstract	Spectrum awareness is the key technique for Cognitive Radio (CR). A special spectrum sensing scheme is necessary for Cognitive UWB radio (CUWB) because of its lower radio power and ultra wide bandwidth. Although CUWB transmitter and receiver could respectively detect the spectrum holes, they couldn't communicate with each other probably if they are out of the communication range or there isn't common usable spectrum segment for them. No sensing technique deals with these problems properly. In this paper a novel active spectrum sensing scheme for cognitive MB-OFDM UWB radio is presented to settle the above problems. The scheme takes full advantage of UWB and finds usable channels directly for CUWB transmitter and receiver through sending beacon signals and acknowledgement signals. This active spectrum sensing scheme is totally different from existing sensing methods and has its own advantages.
Starting Page	1
Ending Page	6
File Size	745758
Page Count	6
File Format	PDF
ISBN	9781424423019
DOI	10.1109/CROWNCOM.2008.4562529
Language	English
Publisher	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Publisher Date	2008-05-15
Publisher Place	Singapore
Access Restriction	Subscribed
Rights Holder	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Subject Keyword	Computer vision Radio transmitters active spectrum sensing Receivers Cognitive radio Wireless communication Wireless sensor networks acknowledgement signals Chromium Signal processing beacon signals Resource management Protection Cognitive MB-OFDM UWB Radio (CUWB)
Content Type	Text
Resource Type	Article

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