Title :
Detection of White Spaces in a Cognitive Radio Architecture
Author :
Stark, Wayne ; De Vries, Pierre
Author_Institution :
Dept. of EECS, Michigan Univ., Ann Arbor, MI
Abstract :
In this paper we consider the use of UHF spectrum that is not allocated to digital TV transmission for unlicensed wireless devices. We model the propagation conditions and calculate the threshold necessary for detection that results in a small probability of creating interference to TV receivers. The threshold depends on the number of wireless devices. We calculated the reduction in threshold possible when multiple devices cooperate to detect the presence of a TV signal.
Keywords :
cognitive radio; digital television; radio spectrum management; radiofrequency interference; radiowave propagation; UHF spectrum; cognitive radio architecture; digital TV transmission; propagation conditions; unlicensed wireless devices; white spaces detection; Cognitive radio; Decoding; Digital TV; Fading; Shadow mapping; Signal detection; TV interference; TV receivers; White spaces; Wireless sensor networks;
Conference_Titel :
Cognitive Radio Oriented Wireless Networks and Communications, 2008. CrownCom 2008. 3rd International Conference on
Conference_Location :
Singapore
Print_ISBN :
978-1-4244-2301-9
Electronic_ISBN :
978-1-4244-2302-6
DOI :
10.1109/CROWNCOM.2008.4562519
