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 …

Flexible channel allocation may be applied to multi-channel cognitive radio networks
(CRNs) through either channel assembling (CA) or channel fragmentation (CF). While CA …

To achieve highly efficient and flexible spectrum sharing in cognitive radio networks, we
proposed a queuing method in combined channel aggregation and fragmentation (CAF) …

In this paper, the Erlang capacity achieved by the separate or joint use of several resource
management mechanisms commonly considered in the literature (spectrum aggregation …

Dynamic spectrum allocation techniques are usually based on the assumption of a
homogeneous cognitive radio network. In this work we describe a Continuous time Markov …

The demand for licensed spectrum resources is rapidly on the rise. This is due to the
proliferation of bandwidth consuming wireless services and multimedia applications which …

Interruption of ongoing calls of secondary users (SUs) due to the arrival of primary users
(PUs) is one of the most relevant factors that degrade both quality of service and system …

In this paper, the performance of heterogeneous traffic Cognitive Radio Networks (CRNs)
with spectrum adaptation and spectrum leasing is mathematically analyzed and evaluated …

Efficient sharing of block devices over an interconnection network is an important step in
deploying a shared-disk parallel file system on a cluster of SMPs. In this paper represent …

Wireless technologies have dominated the communication's market by offering reasonable
speeds and convenience at low deployment costs. However, due to the significant growth of …