Statistical tests-based approaches have been extensively researched for multiple antenna-
based spectrum sensing (SS) in cognitive radio (CR). Nevertheless, their performance is …

Spectrum sensing (SS) is substantial demand for enabling cognitive radio (CR) systems. In
recent years, digital beamforming (DBF) is exploited for performance enhancement of …

In this paper, we propose an underlay cognitive radio (CR) system that includes subscribers,
termed secondary users (SUs), which are designed to coexist with the spectrum owners …

The application of cognitive radio (CR) technology to the Internet of Things (IoT) network can
effectively solve the bottleneck problem of spectrum scarcity. As one of the key steps in …

认知无线电(Cognitive Radio, CR) 通过允许次用户与主用户共享频谱, 在提高无线通信的频谱
效率方面具有重要意义. 最近, 智能反射表面(Intelligent Reflecting Surface, IRS) 的提出 …

The most widely used sensing technique for detecting energy is due to its ease of use and
lack of need for signal information beforehand. Traditional methods often employ a two …

This thesis presents a comprehensive investigation into improving wireless transmission
rates and reliability through the implementation of Space Time Trellis Codes (STTC). The …