Cognitive Radio as Enabling Technology for Dynamic Spectrum Access
Nai-qi Wei, Zi-li Chen
Available Online February 2013.
- https://doi.org/10.2991/isccca.2013.150How to use a DOI?
- Cognitive radio, Spectrum scarcity, Software Defined Radio, Secondary User
- 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.
- Open Access
- This is an open access article distributed under the CC BY-NC license.
Cite this article
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 - https://doi.org/10.2991/isccca.2013.150 ID - Wei2013/02 ER -