in this paper, an interference management for multi-beam satellite network to enhance spectral efficiency is studied. first, a two-satellite for future generation satellite network using cognitive radio technology is provided.this network is composed of a secondary satellite and aprimary satellite where the primary satellite system does not suffer from severe destructive interferences coming fr...

Sensing in the built environment has the potential to reduce asset management expenditure and contribute to extending useful service life. In the built environment, measurements are usually performed indirectly; effects are measured remote from their causes. Modeling approximations from many sources, such as boundary conditions, geometrical simplifications, and numerical assumptions, result in ...

Abstract Cooperative spectrum sensing (CSS) is a process of achieving spatial diversity gain to make global decision for cognitive radio networks (CRNs). However, the accuracy effects owing presence Byzantine during cooperative sensing, therefore causing severe performance degradation CSS. In front malicious users (MUs) launching attack, robust defense framework proposed defend against attack a...

We design a novel nano-ring resonator using two-dimensional photonic crystal (2D-PhC), for bio-sensing applications. The structure of biosensor is created by two-curve-shaped ring resonator which sandwiched by two waveguides. These are configured by removing one row of air holes. The refractive index of sensing hole is changed by binding an analyte. Hence, intensity of the transmission spectrum...

Cognitive radio-based Internet of Things (CR-IoT) network provides a solution for IoT devices to efficiently utilize spectrum resources. Spectrum sensing is critical problem in CR-IoT network, which has been investigated extensively based on deep learning (DL). Despite the unique advantages DL sensing, black-box and unexplained properties neural networks may lead many security risks. This artic...

The exponential growth of Internet connected systems has generated numerous challenges, such as spectrum shortage issues, which require efficient sharing (SS) solutions. Complicated and dynamic SS can be exposed to different potential security privacy requiring protection mechanisms adaptive, reliable, scalable. Machine learning (ML) based methods have frequently been proposed address those iss...