Abstract Vehicular Ad Hoc Network (VANET) is envisaged to play an important role in the
safety of drivers and passengers when moving on the roads. However, VANET still faces …

A cooperative cognitive radio network (CRN) with improved energy detection-based
spectrum sensing is analyzed in various fading scenarios. Generalized multipath (Nakagami …

Spectrum sensing is a fundamental component in a cognitive radio network to utilize the
frequency bands effectively. In this article a fast Riemannian distance-based K-medoids …

Abstract Internet of Vehicles (IoV) is regarded as an emerging concept for intelligent
transportation cyber-physical systems. Due to the limited number of channels available in …

Channel availability is defined as the probability of a licensed channel being available for
the communications of unlicensed users. Channel availability is a key parameter for an …

Cooperative spectrum sensing is a key technology of cognitive radio networks (CRNs) to the
reliability of spectrum sensing but is prone to be affected by a series of user characteristics …

A key issue of the spectrum sensing functionality in Cognitive Radio (CR) networks is the
ability of tuning the sensing time parameters, ie, the sensing time and the transmission time …

Spectrum sensing is used to detect whether primary user are using authorized spectrums,
which can be regarded as a key and core issue for opportunistic spectrum access in …

Spectrum sensing is a critical component for cognitive radio networks. Most of the spectrum
sensing algorithms and performance analysis, however, assume that the secondary users …

Cognitive radio (CR) technology is introduced to solve the problem of spectrum under-
utilization in wireless networks by opportunistically exploiting portions of the spectrum …