Cognitive Radio as Enabling Technology for Dynamic Spectrum Access

DOI

10.2991/isccca.2013.150How to use a DOI?

Keywords

Cognitive radio, Spectrum scarcity, Software Defined Radio, Secondary User

Abstract

Frequency spectrum scarcity is currently one of the mostly discussed topics in wireless communications. When there is no free spectrum available, no new broadband communication techniques can be put into operation. The double use of already assigned frequencies leads to interferences. A possible solution to the problem is Dynamic Spectrum Access (DSA), realized through Cognitive Radio (CR) technology. Cognitive Radios have the ability to detect unused spectrum segments and to adapt to it dynamically. This adaptation does not only concern a change of frequency, but may also include changes in waveform, bandwidth, or whatever leads to an optimal communication link. This paper gives an overview of the state-of-the-art Cognitive Radio approaches and points out opportunities offered by this technology to overcome the threat of spectrum scarcity.

Copyright

© 2013, the Authors. Published by Atlantis Press.

Open Access

This is an open access article distributed under the CC BY-NC license (http://creativecommons.org/licenses/by-nc/4.0/).

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TY  - CONF
AU  - Nai-qi Wei
AU  - Zi-li Chen
PY  - 2013/02
DA  - 2013/02
TI  - Cognitive Radio as Enabling Technology for Dynamic Spectrum Access
BT  - Proceedings of the 2nd International Symposium on Computer, Communication, Control and Automation (ISCCCA 2013)
PB  - Atlantis Press
SP  - 598
EP  - 600
SN  - 1951-6851
UR  - https://doi.org/10.2991/isccca.2013.150
DO  - 10.2991/isccca.2013.150
ID  - Wei2013/02
ER  -