Interference Analysis of TV-Band Whitespace

Cognitive radio (CR) has been suggested as a method for promoting more efficient spectrum usage through the principles of spectrum sensing and dynamic spectrum management. The IEEE 802.22 working group in particular is developing a wireless regional-area network (WRAN) standard that will employ unli...

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Bibliographic Details
Published in:Proceedings of the IEEE 2009-04, Vol.97 (4), p.741-754
Main Authors: Stuber, Gordon L., Almalfouh, Sami M., Sale, Darryl
Format: Article
Language:English
Subjects:
Bands
Channels
Chromium
Cognitive radio
Communication networks
Devices
Digital broadcasting
digital television
Digital TV
End users
FCC
Frequency
IEEE 802.22
Interference
Marketing and sales
Networks
Radio broadcasting
Receivers
Television
TV broadcasting
TV interference
TV receivers
Wireless communication
wireless regional-area network (WRAN)
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Summary:Cognitive radio (CR) has been suggested as a method for promoting more efficient spectrum usage through the principles of spectrum sensing and dynamic spectrum management. The IEEE 802.22 working group in particular is developing a wireless regional-area network (WRAN) standard that will employ unlicensed CR devices operating on a noninterfering basis in the commercial broadcast television (TV) bands. Before such TV-band CR networks can be deployed, the maximum levels of first adjacent and taboo channel interference that a digital television (DTV) receiver can tolerate must be determined. In this context, we will first provide an overview of the IEEE 802.22 WRAN system. Afterwards, we will report on an experimental study that was undertaken to characterize IEEE 802.22 WRAN interference limits into Advanced Television Systems Committee (ATSC) based DTV receivers. Lastly, we will discuss the implications of these WRAN interference limits in terms of the maximum allowable radiated power and out-of-band emission limits that are imposed on WRAN end-user devices.
ISSN:0018-9219
1558-2256
DOI:10.1109/JPROC.2009.2013039