Research Article
Duty Cycle and Channel Occupancy Rate Estimation with MED-FCME LAD ACC
@INPROCEEDINGS{10.4108/icst.crowncom.2012.248410, author={Janne Lehtomaki and Risto Vuohtoniemi and Kenta Umebayashi}, title={Duty Cycle and Channel Occupancy Rate Estimation with MED-FCME LAD ACC}, proceedings={7th International Conference on Cognitive Radio Oriented Wireless Networks}, publisher={IEEE}, proceedings_a={CROWNCOM}, year={2012}, month={7}, keywords={spectrum measurements channel occupance rates duty cycles unlicensed bands}, doi={10.4108/icst.crowncom.2012.248410} }- Janne Lehtomaki
Risto Vuohtoniemi
Kenta Umebayashi
Year: 2012
Duty Cycle and Channel Occupancy Rate Estimation with MED-FCME LAD ACC
CROWNCOM
IEEE
DOI: 10.4108/icst.crowncom.2012.248410
Abstract
Duty cycle (DC) and channel occupancy rate (COR) measurements are important to characterize the availability of white space for cognitive radio systems. To facilitate accurate DC measurements, we apply the localization algorithm based on double-thresholding (LAD) with the adjacent cluster combining (ACC). In order to get stable thresholds, we propose and apply a modified version of the LAD ACC called the MED-FCME LAD ACC. We show that LAD ACC based approaches can also be used for COR estimation. For even more accurate COR estimation, we propose estimation based on hard decision fusion of the frequency domain decisions. Measurement results confirm the good performance of the proposed approaches.
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