Back to Search
Start Over
DTV protection regions for spectrum sharing
- Source :
- The Journal of Engineering (2014)
- Publication Year :
- 2014
- Publisher :
- Wiley, 2014.
-
Abstract
- In this Letter, the authors propose a technique that allows a secondary user (SU) to reuse the spectrum allocated to TV broadcast system. The approach is based on protection view point and an SU is allowed to transmit outside the noise limited contour (grade B contour) with additional protection margin. An algorithm was developed that predicts the grade B contour and makes a decision on the availability of the spectrum. The keep-out distance was obtained using the existing path loss models and a model developed based on field strength measure- ments conducted in the very high frequency (VHF) and ultra high frequency (UHF) broadcast frequencies. Results of simulation indicate that the extra margin does not follow a linear curve as expected, but strongly depends on the operating frequency and terrain profile of the area. In addition, the measured model's prediction deviates significantly from the other models' prediction.
- Subjects :
- spectrum availability
linear curve
Computer science
field strength measurement
contour prediction
frequency profile
allocated spectrum reusability
model prediction
Energy Engineering and Power Technology
VHF radio propagation
Field strength
Terrain
radio spectrum management
decision making
digital television
UHF radio propagation
protection margin
Margin (machine learning)
TV broadcast system
Electronic engineering
Path loss
secondary user
Point (geometry)
terrain profile
business.industry
television broadcasting
General Engineering
DTV protection regions
VHF broadcast frequency
Noise
Ultra high frequency
UHF broadcast frequency
lcsh:TA1-2040
Digital television
business
lcsh:Engineering (General). Civil engineering (General)
Algorithm
noise limited contour
path loss model
Software
spectrum sharing
Subjects
Details
- Language :
- English
- Database :
- OpenAIRE
- Journal :
- The Journal of Engineering (2014)
- Accession number :
- edsair.doi.dedup.....9ec3735dda760b58771d270984e5caba