Due to the significantly increased demand for wireless connectivity in recent years, the
natural radio spectrum has become a very important and scarce resource. Since the …

The spectrum allocation for cognitive radio networks (CRNs) has received considerable
studies under the assumption that the bandwidth of spectrum holes is static. However, in …

Cognitive Radio (CR) is an advanced technology, which intends to boost the radio spectrum
utilization. On perceiving the spectrum holes, next there is a need to provide a fair …

We consider the one-dimensional skiving stock problem (SSP) which is strongly related to
the dual bin-packing problem in literature. In the classical formulation, different (small) item …

The spectrum allocation for cognitive radio sensor networks (CRSNs) has received
considerable research attention under the assumption that the spectrum environment is …

In order to meet the constantly increasing demand by mobile terminals for higher data rate
with limited wireless spectrum resources, cooperative relay and spectrum aggregation …

With its opportunistic nature to exploit the unused licensed bands, cognitive radio (CR)
presents itself as an advancing technology that senses for spectrum holes and distributes …

In spectrum aggregation (SA), two or more component carriers (CCs) of different bandwidths
in different bands can be aggregated to support a wider transmission bandwidth. The …

In order to meet the constantly increasing demand by mobile terminals for higher data rates
with limited wireless spectrum resource, cognitive radio and spectrum aggregation …

In this paper, we study a spectrum allocation mechanism of Cognitive Radio Networks
based on multi-backpack problem, and then propose a discrete hybrid leapfrog algorithm …