Internet of things (IoT) paradigm poses new challenges to the communication technology as
numerous heterogeneous objects will need to be connected. To address these issues new …

Cognitive radio is a promising technology that enables an unlicensed user (also known as a
cognitive user) to identify the white space of a licensed spectrum band (called a spectrum …

In this paper, we consider a decode-and-forward (DF) cooperation system consisting of two
cooperative users in sending their information to a common destination, for which the …

In cognitive radio (CR) networks, cooperative spectrum sensing is utilized to improve the
sensing performance to avoid potential interference to primary users (PUs) and increase …

This paper provides performance analysis of relay-based cognitive radio (CR) networks and
presents a detect-amplify-and-forward (DAF) relaying strategy for cooperative spectrum …

We investigate the problem of distributed channel selection in cognitive radio networks
(CRNs) by taking the demands of the users into account. In most existing channel selection …

Spectrum mobility as an essential issue has not been fully investigated in mobile cognitive
radio networks (CRNs). In this paper, a novel support vector machine based spectrum …

In cognitive radio (CR) networks, cooperative relaying is emerging as a key technology to
improve the performance of secondary users (SUs), while ensuring the quality of service of …

In practice, sensing results often affect the data transmission in cognitive radio systems.
Therefore, a hybrid interweave/underlay cognitive radio system is presented by jointly …

In this paper, we investigate the joint optimization of sensing and power allocation for
cooperative relay in cognitive radio networks (CRNs). Specifically, in the sensing time slot …