On Spectrum Sharing and Dynamic Spectrum Allocation: MAC Layer Spectrum Sensing in Cognitive Radio Networks
| Document type: | Conference Papers |
|---|---|
| Peer reviewed: | Yes |
| Author(s): | Mohamed Hamid, Abbas Mohammed, Zhe Yang |
| Title: | On Spectrum Sharing and Dynamic Spectrum Allocation: MAC Layer Spectrum Sensing in Cognitive Radio Networks |
| Conference name: | International Conference on Communications and Mobile Computing (CMC) |
| Year: | 2010 |
| ISBN: | 978-1-4244-6327-5 |
| Publisher: | IEEE |
| City: | Shenzhen |
| URI/DOI: | 10.1109/CMC.2010.342 |
| Organization: | Blekinge Institute of Technology |
| Department: | School of Engineering - Dept. of Electrical Engineering (Sektionen för ingenjörsvetenskap - Avd. för elektroteknik) School of Engineering S-371 79 Karlskrona +46 455 38 50 00 http://www.bth.se/ing/ |
| Authors e-mail: | amo@bth.se, zya@bth.se |
| Language: | English |
| Abstract: | One of the most critical issues regarding wireless networks regulation agencies is how to manage the available electromagnetic radio spectrum in a way that satisfies the needs of the huge growing in wireless systems both economically and technically, especially with the recent crowding in the available spectrum. Hence, building cognitive radio systems supporting dynamic access to the available spectrum has appeared recently as a novel solution for the wireless system huge expansion. In this paper we investigate the MAC layer sensing schemes in cognitive radio networks, where both reactive and proactive sensing are considered. In proactive sensing the adapted and non-adapted sensing periods schemes are also assessed. The assessment of these sensing schemes has been held via two performance metrics: available spectrum utilization and idle channel search delay. Simulation results show that with proactive sensing adapted periods we achieve the best performance but with an observable overhead computational tasks to be done by the network nodes. |
| Subject: | Telecommunications\General |
| Keywords: | Spectrum Sensing, Cognitive Radio, Dynamic Spectrum Allocation |
