A closed-form of cooperative detection probability using EGC-based soft decision under Suzuki fading

Thai-Mai Thi Dinh, Quoc Tuan Nguyen, Kumbesan Sandrasegaran
2017 2017 11th International Conference on Signal Processing and Communication Systems (ICSPCS)  
In cooperative spectrum sensing based on energy detection, several researchers have concluded that Soft Decision has better detection performance than Hard Decision. In this paper, we focus on Equal Gain Combining (EGC)-based soft decision under Suzuki fading which is a composite Rayleighlognormal fading. We use Moment-Generating function (MGF) to approximate Probability Density Function (PDF) of power sum of received signals at Fusion Center. Then we propose a novel method to evaluate
more » ... ve detection performance under the effect of i.i.d Suzuki fading by using Gauss-Hermite approximation and MGF matching. Finally, we compare the results of EGC-based Soft Decision with those of Hard Decision.
doi:10.1109/icspcs.2017.8270508 dblp:conf/icspcs/DinhNS17 fatcat:p7vtmlmfbfamnolotqwbndnfea