Abstract
This paper considers the problem, in the context of cognitive radio systems, of identifying the spectral occupancy of a signal, where its bandwidth is only a subset of the total bandwidth of interest. It is argued that traditional detection approaches need to be extended to cater for arbitrary radio environments that are not channelized in a way that is known in advance. An extended energy detection model is introduced, where upon deciding that the signal is present, it also makes a decision on its spectral boundaries. A simple peak detection algorithm is described which allows these boundaries to be identified, and whose performance under various scenarios is observed empirically.
Original language | English |
---|---|
Title of host publication | 2012 International Symposium on Communications and Information Technologies, ISCIT 2012 |
Place of Publication | Piscataway, N.J. |
Publisher | Institute of Electrical and Electronics Engineers (IEEE) |
Pages | 274-279 |
Number of pages | 6 |
ISBN (Print) | 9781467311571 |
DOIs | |
Publication status | Published - 2012 |
Event | 2012 International Symposium on Communications and Information Technologies, ISCIT 2012 - Gold Coast, QLD, Australia Duration: 2 Oct 2012 → 5 Oct 2012 |
Other
Other | 2012 International Symposium on Communications and Information Technologies, ISCIT 2012 |
---|---|
Country/Territory | Australia |
City | Gold Coast, QLD |
Period | 2/10/12 → 5/10/12 |
Keywords
- cognitive radio
- detectors
- signal analysis
- signal detection
- spectral analysis
- spectral shape