Traffic Fractal Analysis and the Determine the Probability Call Blocking in Cellular Mobile Networks

The purpose of this article is analysis of fractal properties of traffic and its influence on the characteristics of telecommunication systems for a given quality of service (QoS) as invariant to scale throbbing traffic structure can significantly influence the network performance. Analysis of the causes and consequences of fractal in traffic, and to identify areas handover is an important task in the modeling of radio coverage in the environment base stations Radio Mobile [1]. The numerical analysis model is incomplete two streams available system of mass service (SMS) with expectations calling for the handover and determine the probability of each new call blocking, call handover-and-multiple-call handover in a mobile network cell

Observation of superluminal geometrical resonances in Bi2Sr2CaCu2O8+x intrinsic Josephson junctions

We study Fiske steps in small Bi2Sr2CaCu2O8+x mesa structures, containing only few stacked intrinsic Josephson junctions. Careful alignment of magnetic field prevents penetration of Abrikosov vortices and facilitates observation of a large variety of high quality geometrical resonances, including superluminal with velocities larger than the slowest velocity of electromagnetic waves. A small number of junctions limits the number of resonant modes and allows accurate identification of modes and velocities. It is shown that superluminal geometrical resonances can be excited by subluminal fluxon motion and that flux-flow itself becomes superluminal at high magnetic fields. We argue that observation of high-quality superluminal geometrical resonances is crucial for realization of the coherent flux-flow oscillator in the THz frequency range

Objects Reconstruction By Compressive Sensing from Single-pixel Registrations Using DMD

Compressive sensing allows to reconstruct information from a number of sparse signals. Use of digital micromirror device (DMD) between object and single-pixel detector planes is example of sparse signals registration technique. Detection of illumination from the objects by a single-pixel detector using a DMD was modeled. Grayscale, binary and color object images were used as objects. By compressed sensing images obtained under various recording conditions were reconstructed. Obtained results were analyzed. Reconstruction quality estimations and processing times are given. Keywords: compressed sensing, single-pixel imaging, digital micromirror device, image quality