In this work, we address competition among autonomous cognitive radios (CRs) which are
competing for frequency bands, and model their interactions. We design auction …

This work proposes the concept and reports the implementation of an innovative, adaptive
and cognitive optical-wireless network. It is able to perform Spectral Sensing (SS) and …

The explosive emergence of wireless technologies and standards, covering licensed and
unlicensed spectrum bands, has triggered the appearance of a huge amount of wireless …

This article presents an automated sale and delivery of optical services with the guaranteed
quality of service (QoS) using the multi-agent system (MAS) for QoS management which is …

We describe an enabling technology for spectrum management in wireless dynamic
spectrum access (DSA) networks. The technology is based on an open architecture and …

Visible light communication (VLC) is a promising solution to satisfy the extreme demands of
emerging applications. VLC offers bandwidth that is orders of magnitude higher than what is …

In this article, the spectrum trading problem between primary users and secondary networks
is investigated. The secondary network requests multiple channels with the targeted …

A novel distributed scheme that combines cooperative ARQ with the spectrum leasing
paradigm is proposed and analyzed. The strategy harnesses the opportunistic gains of …

The paper demonstrates a spectrum slicing technique applied to PAM-4 modulated signal
spectrum at 40 Gbaud baudrate for optical access networks. The spectrum slicing is shown …

In dynamic spectrum access systems, such as cognitive radio networks, spectrum pooling is
one of the approaches to manage the available spectrum bands from different licensed …