Abstract
Underutilization of the limited spectrum sparked the need for dynamic spectrum access and flexible spectrum policies. Accurate estimation of spectrum occupancy is an essential step for spectrum access in distributed networks. This paper analyzes a bidirectional and dual scanning method that scans multiple spectrum bands to find a suitable free-channel. Moreover, secondary users' access to available spectrum could be interrupted by the arrival of primary spectrum users, forcing the well-behaved secondary users to switch to another free-channel. A pointer and adaptive reserve channel mechanism is proposed in this paper to facilitate quicker and smoother channel switching. Simulation results for both techniques show improved overall connectivity is maintained for varying primary users' arrival rates
| Translated title of the contribution | Spectrum scanning and reserve channel methods for link maintenance in cognitive radio systems |
|---|---|
| Original language | English |
| Title of host publication | IEEE Vehicular Technology Conference, 2008 (VTC Spring 2008), Singapore |
| Publisher | Institute of Electrical and Electronics Engineers (IEEE) |
| Pages | 1944 - 1948 |
| Number of pages | 5 |
| ISBN (Print) | 9781424416448, 15502252 |
| DOIs | |
| Publication status | Published - May 2008 |
| Event | Vehicular Technology Conference 2008 - Singapore, Singapore Duration: 1 May 2008 → … |
Conference
| Conference | Vehicular Technology Conference 2008 |
|---|---|
| Abbreviated title | VTC 2008-Spring |
| Country/Territory | Singapore |
| City | Singapore |
| Period | 1/05/08 → … |
Bibliographical note
Name and Venue of Event: IEEE Vehicular Technology Conference, 2008 (VTC Spring 2008), SingaporeRose publication type: Conference contribution
Additional information: With accompanying conference poster
Sponsorship: The authors would like to thank Toshiba Research Europe Limited and EPSRC for funding this work through the Dorothy Hodgkin Postgraduate Award
Terms of use: Copyright © 2008 IEEE. Reprinted from IEEE Vehicular Technology Conference, 2008 (VTC Spring 2008).
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ISSN: 9781424416448