Millimetre wave channel modeling based on grey genetic optimization model

mortality forecasting based on lee-carter model

over the past decades a number of approaches have been applied for forecasting mortality. in 1992, a new method for long-run forecast of the level and age pattern of mortality was published by lee and carter. this method was welcomed by many authors so it was extended through a wider class of generalized, parametric and nonlinear model. this model represents one of the most influential recent d...

Broadband millimetre-wave passive spatial combiner based on coaxial waveguide

A broadband millimetre-wave passive spatial combiner using a microstrip probe array and an oversized coaxial waveguide is successfully designed and tested. The equivalent circuit approach of transverse electromagnetic (TEM) lines is adopted to synthesise the coaxial stepped impedance transformer from a K connector with the oversized coaxial waveguide and to analyse the microstrip probe array. T...

Millimetre-wave and Terahertz Electronics

Millimetre-wave channel impulse response experimental evaluation and relation between delay spread and channel coherence bandwidth

This paper presents the experimental set-up description and some results of a channel impulse response measurement campaign. The measurements were performed in the frequency domain, in the 40 GHz band, and the channel impulse response was obtained applying spectral analysis. A wide indoor sports pavilion was selected for the experiments, considering several static discrete positions for the mob...

Wireless Channel Modeling Based on Finite-state Markov Model

In this paper, a wireless channel is viewed as a heterogeneous network in the time domain, and an adaptive video transmission scheme for H.264 scalable video over wireless channels modeled as a finite-state Markov chain processes is presented. In order to investigate the robustness of adaptive video transmission for H.264 scalable video over wireless channels, statistical channel models can be ...