Abstract
Radio spectrum deployment is growing considerably. With
this respect finding unutilized frequency channels for
new applications has become much more challenging. The
problem can be solved by letting unlicensed systems to
dynamically use unexploited licensed bands. This kind of
flexible spectrum usage requires telecommunication
systems to be equipped by an ability to specify
unoccupied parts of radio spectrum. One method to
identify temporarily unused parts of radio spectrum is
spectrum sensing. In this paper, we focus on spectrum
sensing using Welch's periodogram. In particular, we
generalize and apply the theoretical analysis of the
energy detection to the Welch's periodogram. Furthermore,
we extend our study to cooperative spectrum sensing. The
results indicate that the cooperation between two radios
provides the highest cooperation gain.
Original language | English |
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Title of host publication | 2008 First International Workshop on Cognitive Radio and Advanced Spectrum Management |
Publisher | IEEE Institute of Electrical and Electronic Engineers |
Pages | 1-5 |
ISBN (Electronic) | 978-1-4244-2140-4 |
ISBN (Print) | 978-1-4244-2139-8 |
DOIs | |
Publication status | Published - 2008 |
MoE publication type | A4 Article in a conference publication |
Event | First IEEE International Workshop on Cognitive Radio and Advanced Spectrum Management, IEEE CogART'08 - Aalborg, Denmark Duration: 14 Feb 2008 → 14 Feb 2008 Conference number: 1 |
Workshop
Workshop | First IEEE International Workshop on Cognitive Radio and Advanced Spectrum Management, IEEE CogART'08 |
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Abbreviated title | IEEE CogART'08 |
Country/Territory | Denmark |
City | Aalborg |
Period | 14/02/08 → 14/02/08 |
Keywords
- cognitive radio
- power control
- spatial databases
- radiofrequency identification
- spectrum sensing techniques
- wireless channels