Spectrum Sensing in Cognitive Radio Using Combined Sequential Energy Detector and Cyclostationary Feature Detector
نویسندگان
چکیده
منابع مشابه
Spectrum Sensing for Cognitive Radio Using Hybrid Matched Filter Single Cycle Cyclostationary Feature Detector
Spectrum sensing is an important task in cognitive radio (CR). Matched filter technique one of the techniques employed for spectrum sensing in cognitive radio which faces the challenge of low frequency offset tolerance in very low SNR environments. Hybrid matched filter architecture is used to improve this frequency offset tolerance. But, overall even such kind of architecture results in coarse...
متن کاملA Cyclostationary Feature Detector
Cyclostationary models for communications signals have been shown in recent years to ooer many advantages over stationary models. Stationary models are adequate in many situations, but they cause important features of the signal to be overlooked. One such important feature is the correlation between spectral components that many signals exhibit. Cyclostationary models allow this spectral correl...
متن کاملSpectrum Sensing in Cognitive Radio: Use of Cyclo-Stationary Detector
Cognitive radio allows unlicensed users to access licensed frequency bands through dynamic spectrum access so as to reduce spectrum scarcity. This requires intelligent spectrum sensing techniques like co-operative sensing which makes use of information from number of users. This thesis investigates the use of cyclo-stationary detector and its simulation in MATLAB for licensed user detection. Cy...
متن کاملSpectrum Sensor Hardware Implementation Based on Cyclostationary Feature Detector
Cognitive radios utilize spectrum sensors to provide information about the surrounding radio environment. This enables cognitive radios to communicate at the same frequency bands with existing (primary) radio systems, and thereby improve the utilization of spectral resources. Furthermore, the spectrum sensor must be able to guarantee that the cognitive radio devices do not interfere with the pr...
متن کاملPerformance Analysis of Energy Detector over Different Generalised Wireless Channels Based Spectrum Sensing in Cognitive Radio
This thesis extensively analyses the performance of an energy detector which iswidely employed to perform spectrum sensing in cognitive radio over different gener-alised channel models. In this analysis, both the average probability of detection andthe average area under the receiver operating characteristic curve (AUC) are derivedusing the probability density function of th...
متن کاملذخیره در منابع من
با ذخیره ی این منبع در منابع من، دسترسی به آن را برای استفاده های بعدی آسان تر کنید
ژورنال
عنوان ژورنال: Journal of Measurements, Electronics, Communications, and Systems
سال: 2016
ISSN: 2477-7986,2477-7994
DOI: 10.25124/jmecs.v2i1.1487