Optimisation of virtual cooperative spectrum sensing for UAV‐based interweave cognitive radio system

In an interweave cognitive radio system, cooperative spectrum sensing has been recognised as a key technology to enable secondary users opportunistically access licensed band without harmful interference primary users. At the same time, unmanned aerial vehicle equipped with and data transmission facilities is gaining more popularity in different applications. An vehicle-based investigated which used user, but unlike participation of multiple traditional sensing, virtual model introduced into periodic frame structure. Afterwards, authors further propose energy-efficient sequential 0/1 fusion rule reduce average number decisions any loss detection performance. Sequentially, formulate optimisation for ratio system optimal problem on basis K-out-of-N prove formulated indeed one K, yields highest throughput. Finally, numerical simulations are presented demonstrate correctness theoretical analyses effectiveness rule.