Spectrum sensing (SS) exhibits its advantages in the era of Internet of Things (IoT) due to \nlimited spectrum resource and a lower utilization rate of authorized spectrum. In consequence, the \nperformance improvement of SS seems a matter of great significance for the development of \nwireless communication and IoT. Motivated by this, this paper is devoted to multi -slot based SS in \nspecialty and several important conclusions are drawn. Firstly, SS with one slot outperforms those \nwith multiple slots if decision fusion rule is considered for multi -slot based SS. Secondly, multi -slot \nbased SS is conducive to the performance improvement of SS when instantaneous strong noise \noccurs in the radio environment. Thirdly, for multi -slot based cooperative spectrum sensing (CSS), \nmajority voting rule among multiple nodes obtains the optimal sensing performance. Both \ntheoretical analysis and simulation experiment validate the conclusions drawn in this paper.
Loading....