The Infona portal uses cookies, i.e. strings of text saved by a browser on the user's device. The portal can access those files and use them to remember the user's data, such as their chosen settings (screen view, interface language, etc.), or their login data. By using the Infona portal the user accepts automatic saving and using this information for portal operation purposes. More information on the subject can be found in the Privacy Policy and Terms of Service. By closing this window the user confirms that they have read the information on cookie usage, and they accept the privacy policy and the way cookies are used by the portal. You can change the cookie settings in your browser.
The paper proposes vehicular communication principles in order to increase workers and pedestrians crossroads safety at the seaport. A hybrid environment-based approach for modeling the vehicular communication channel is used. It is based on a combination of a deterministic ray-launching algorithm (PIROPA) to model large-scale parameters, and a stochastic model to obtain small-scale ones. Simulation...
A novel hybrid environment-based approach for modeling the vehicular communication channel is developed in this study. It is a combination of a deterministic ray-launching algorithm (PIROPA) to model the Large-Scale parameters, and a stochastic model, to obtain the Small-Scale parameters. This hybrid channel model is site-dependent, i.e., the propagation parameters of the channel are obtained based...
Propagation characteristics in vehicular radio channels are affected by time- and frequency-selective behavior due to the multipath propagation effect and the movements of the transmitter, the receiver as well as the relevant scatterers. Measurements are vital for the understanding of propagation channels. This article provides an overview of existing vehicular channel measurements. The vehicular...
Radio channels are usually modeled as a well‐defined Rice process. The statistics of its wrapped phase (i.e., phase values in [−π,π)), such as the mean, variance, and probability density function (pdf), are known. The absolute phase, i.e., the accumulated phase change over an observation interval, is considered here as a new channel variable. Its use for channel characterization can extend to cognitively...
The applications of ultra wideband (UWB) systems in commercial vehicles are increasingly attracting attention recently. This paper aims to lay a solid foundation for the use of UWB radio in vehicular environments by measuring both intra-vehicle and inter-vehicle UWB channels. At first, a comprehensive measurement campaign was conducted to gather a set of channel impulse responses of UWB channels under...
Set the date range to filter the displayed results. You can set a starting date, ending date or both. You can enter the dates manually or choose them from the calendar.