We introduce and explore a family of vertex-coloring problems, which, surprisingly enough,
have not been considered before despite stemming from the problem of Wi-Fi channel …

Due to the high density of Wi‐Fi networks, especially in the unlicensed 2.4 GHz frequency
band, channel assignment has become a critical duty for achieving a satisfactory user …

In this paper, we investigate traffic engineering (TE) methods in Cognitive Radio Wireless
Mesh Networks (CR-WMNs) through joint selection of link-channel pairs at each forwarding …

In spectrum-sharing networks, primary users have the right to preempt secondary users,
which can significantly degrade the performance of underlying secondary users. In this …

In disaster scenarios, with damaged network infrastructure, cognitive radio (CR) can be used
to provide temporary network access in the first few hours. Since spectrum occupancy will be …

Cognitive radio is a promising technique to increase the efficient utilization of the existing
radio spectrum. However one of the key challenges that have to be overcome for optimally …

Disasters are catastrophic events that cause great damage or loss of life. In disasters,
communication services might be disrupted due to damage to the existing network …

Millimeter wave (mmWave) and Tera-Hertz (THz) communications are promising
technologies for next generation wireless communication systems. However, their …

RESUMEN A lo largo de los años la teoría de eficiencia de acceso dinámico al espectro
(DAS, por sus siglas en inglés), dio origen a la metodología y filosofía de acceso oportunista …

Disasters are the unpredictable and unavoidable events which cause loss of life and
damage to infrastructure. In the first six months of 2017 alone, a total of 149 disasters …