Cognitive Radio Networks with Elastic Traffic
| Document type: | Conference Papers |
|---|---|
| Peer reviewed: | Yes |
| Full text: | |
| Author(s): | Jorge Martinez-Bauset, Alexandru Popescu, Vicent Pla, Adrian Popescu |
| Title: | Cognitive Radio Networks with Elastic Traffic |
| Conference name: | Eighth Euro-NF Conference on Next Generation Internet (NGI) |
| Year: | 2012 |
| City: | Karlskrona |
| Organization: | Blekinge Institute of Technology |
| Department: | School of Computing (Sektionen för datavetenskap och kommunikation) School of Computing S-371 79 Karlskrona +46 455 38 50 00 http://www.bth.se/com |
| Authors e-mail: | jmartinez@upvnet.upv.es, app@bth.se, vpla@dcom.upv.es, adrian.popescu@bth.se |
| Language: | English |
| Abstract: | We model and evaluate an infrastructure based cognitive radio network where impatient unlicensed or secondary users (SUs) offer elastic traffic. The interference created by SUs to the licensed users is analyzed when the secondary network uses two different spectrum access schemes, the conventional random access scheme and a new scheme we refer to as access with preference. To further control the interference, a limit is set to the number of channels SUs have access to. With this new constraint, the abandonment probability, the mean delay and throughput of the SUs degrades significantly. To improve the QoS perceived by the active SUs, we define and evaluate an admission control scheme for the SUs. |
| Subject: | Computer Science\Networks and Communications Telecommunications\Modelling of Bursty Traffics |
| Keywords: | Cognitive radio networks, spectrum access, elastic traffic, performance evaluation |
| EU Project ID: | Euro NF |
