Title :
Unified approach for performance analysis of Cognitive Radio Spectrum Sensing over correlated multipath fading channels
Author :
Al-Juboori, Salam ; Fernando, Xavier
Author_Institution :
Dept. of Electr. & Comput. Eng., Ryerson Univ., Toronto, ON, Canada
Abstract :
In this work, we analyse the performance of Cognitive Radio Spectrum Sensing (CRSS) systems with multiple receiving antennas considering the effect of correlation among fading branches. Exact closed-form expressions for the average detection probabilities (P̅D) are derived employing Probability Density Functions (PDF) approach for n.i.i.d.-L number of diversity branches over Nakagami-m fading channels with Maximal Ratio Combining (MRC) diversity. Performance analysis reveals the detrimental effect of the correlation on detection performance thus decreasing detection probability. However, results also show that this effect could be compensated through employing diversity combining technique and by increasing the diversity branches.
Keywords :
Nakagami channels; cognitive radio; diversity reception; multipath channels; probability; radio spectrum management; receiving antennas; signal detection; Nakagami-m fading channels; average detection probabilities; cognitive radio spectrum sensing; correlated multipath fading channels; detection performance; detection probability; diversity branches; diversity combining technique; fading branches; maximal ratio combining diversity; multiple receiving antennas; probability density functions; Closed-form solutions; Correlation; Diversity reception; Fading; Probability density function; Sensors; Signal to noise ratio;
Conference_Titel :
World of Wireless, Mobile and Multimedia Networks (WoWMoM), 2015 IEEE 16th International Symposium on a
Conference_Location :
Boston, MA
DOI :
10.1109/WoWMoM.2015.7158194
