With the fast growing of multimedia communication applications, cognitive radio networks
have gained the popularity as they can provide high wireless bandwidth and support quality …

The Internet of Things (IoT) is a network of interconnected objects, in which every object in
the world seeks to communicate and exchange information actively. This exponential growth …

In this paper, we consider a cognitive radio (CR) network that consists of multiple secondary
users (SUs), each of which is equipped with an energy harvesting capability. We consider …

To support delay-sensitive traffic in multi-channel cognitive radio systems, designing a
channel access scheme faces two major challenges, namely, the long waiting time due to …

Wireless applications have been growing rapidly in the past years, leading to the problem of
spectrum scarcity. Cognitive radio network (CRN) is an emerging technology which can …

The adoption of cooperative spectrum sensing (CSS) is a powerful approach to improve the
utilization of scarce radio spectrum resources. However, some secondary users (SUs) may …

Cognitive radio (CR) as a promising way to solve the spectrum scarcity allows exploitation of
the shared frequency bands while guaranteeing acceptable interference to incumbent users …

In cognitive radio networks, the packet transmissions of the secondary users (SUs) can be
interrupted randomly by the primary users (PUs). That is to say, the PU packets have …

A cognitive user (CU) operates as a secondary user of a cognitive channel. Before
transmission CU samples the channel until it estimates that the channel can be accessed …

In this paper, we study two important quality of service (QoS) parameters of dynamic
spectrum access (DSA) networks with multiple primary and secondary users. We assume …