Name
Abstract | ||
|---|---|---|
Cognitive radio technologies are being developed which allow heterogeneous systems to share spectrum access while minimizing interference to improve the overall efficiency of spectrum usage. Interference minimization requires cognitive radio receivers to be able to detect the presence of all other systems competing for spectrum usage, a process often termed "spectrum sensing". This paper focuses on the kernel function of spectrum sensing: blind interference detection from a single, strictly time-limited, received data vector. Recent research has identified shortcomings in the operation of classical blind interference detection techniques such as energy detection and radiometry. This paper demonstrates that implicit interference characteristics can be exploited in a formal framework using hidden Markov modeling to produce a spectrum sensor with a receiver operating characteristic which is improved on that of energy detection and several other previously reported methods. |
Year | DOI | Venue |
|---|---|---|
2009 | 10.1109/ICC.2009.5199481 | IEEE International Conference on Communications |
Keywords | Field | DocType |
cognitive radio technology,classical blind interference detection,share spectrum access,cognitive radio receiver,interference minimization,implicit interference characteristic,spectrum sensor,hidden markov modeling,energy detection,spectrum usage,blind interference detection,sensors,interference,hidden markov model,probability density function,radio receivers,detectors,receiver operator characteristic,hidden markov models,testing,spectrum,noise,radiometers,receiver operating characteristics,radiometry,sensitivity analysis,kernel function,cognitive radio | Wideband,Computer science,Real-time computing,Electronic engineering,Speech recognition,Radiometry,Interference (wave propagation),Interference minimization,Hidden Markov model,Probability density function,Kernel (statistics),Cognitive radio | Conference |
ISSN | Citations | PageRank |
1550-3607 | 8 | 0.61 |
References | Authors | |
14 | 1 | |
Name | Order | Citations | PageRank |
|---|---|---|---|
| Alan J. Coulson | 1 | 283 | 31.45 |