Name
Abstract | ||
|---|---|---|
Increased spectrum efficiency has been demonstrated with the use of cognitive radios, however with increased likelihood of interference to the incumbents of spectrum. Several studies solved the interference problem from the transmitter power control perspective, so as to curtail excessive cognitive interference powers; however, neglecting the effect of secondary terminal mobility. We show by simulation that such assumption of terminal immobility in the power control algorithm would fail in time variant cases resulting in increased levels of interference to the Incumbents as well as serious degradation in QoS within the cognitive radio network. We model the link gain evolution process as a distance dependent shadow fading process and scale up the target signal to interference ratio to cope with time variability. This paper therefore, proposes a mobility driven power control algorithm for cognitive radios based on sensing information, which ensures that the interference limit at the Incumbents is unperturbed at all times while concurrently maintaining the QoS within the cognitive radio network. |
Year | DOI | Venue |
|---|---|---|
2011 | 10.1109/VETECS.2011.5956556 | Vehicular Technology Conference |
Keywords | Field | DocType |
cognitive radio,fading channels,mobile radio,power control,radio networks,radio transmitters,radiofrequency interference,cognitive interference power,cognitive radio network,cognitive time variant power control,distance dependent shadow fading process,fading mobile channel,interference ratio,mobility driven power control algorithm,spectrum efficiency,terminal immobility,time variant case,transmitter power control perspective | Transmitter,Signal-to-interference ratio,Mobile radio,Computer science,Fading,Power control,Computer network,Electronic engineering,Interference (wave propagation),Spectral efficiency,Cognitive radio | Conference |
ISSN | ISBN | Citations |
1550-2252 | 978-1-4244-8332-7 | 0 |
PageRank | References | Authors |
0.34 | 9 | 3 |
Name | Order | Citations | PageRank |
|---|---|---|---|
| Olasunkanmi Durowoju | 1 | 0 | 0.34 |
| Kamran Arshad | 2 | 328 | 26.17 |
| Klaus Moessner | 3 | 1077 | 112.48 |