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Beacon-Enabled Cognitive Access for Dynamic Spectrum Access
Blekinge Institute of Technology, School of Computing.
Blekinge Institute of Technology, School of Computing.
Blekinge Institute of Technology, School of Computing.
Responsible organisation
2012 (English)Conference paper (Refereed)
Abstract [en]

In dynamic spectrum access networks, the unused licensed spectrum used by primary users (PU) is opened to unlicensed secondary users (SU) for improving spectrum efficiency. We design a simple time-based threshold policy for collective protection of PUs, enabled by an out-of-band channel. In particular, multiple SUs may be widely distributed in a geographic location. The interference that collocated SUs cause to each other, termed self-interference, becomes a major source that may degrade the SUs communication performance. We establish an analytical framework for carrier sense multiple access (CSMA) based coexistence mechanisms when integrated into a family of time based threshold policies, and study its performance though theoretical analysis.

Place, publisher, year, edition, pages
Karlskrona: IEEE , 2012.
Keyword [en]
Dynamic Spectrum Access, Cognitive radio, Medium access control
National Category
Computer Science
URN: urn:nbn:se:bth-7267Local ID: diva2:834857
8th Euro-NF Conference on Next Generation Internet (NGI)
Available from: 2012-09-18 Created: 2012-08-14 Last updated: 2016-09-06Bibliographically approved

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Ngoga, Said RutabayiroYao, YongPopescu, Adrian
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