Naslov
Dynamics of Multipath Variations in Urban Environment

Autori
Zentner, Radovan ; Katalinić, Ana

Vrsta, podvrsta i kategorija rada
Radovi u zbornicima skupova, cjeloviti rad (in extenso), znanstveni

Izvornik
Proceedings of the 2010 European Wireless Technology Conference (EuWIT) / Horizon House Publications Ltd - London : Delhi : Horizon House Publications Ltd, 2010, 125-128

ISBN
978-1-4244-7233-8

Skup
2010 European Wireless Technology Conference (EuWIT)

Mjesto i datum
Pariz, Francuska, 26.09.2010. - 01.10.2010

Vrsta sudjelovanja
Predavanje

Vrsta recenzije
Međunarodna recenzija

Ključne riječi
channel model ; stochastic channel model ; deterministic channel model ; ray tracing

Sažetak
The paper analyzes the pace of change for multipath components along a route in urban environment. The direct benefit of the investigation is an insight into the size of visibility regions for multipath components. The problem is considered in time domain, without the impact of antenna patterns or specific frequency band (these can be implemented on the results of the analysis for the purpose of investigating the specific frequency band and specific (MIMO) antenna combination). The analysis was performed using 3D ray tracing tool that calculated the direction of arrival, the length of each multipath component, as well as the power level for each ray. Types of propagation applied were line of sight, reflection and diffraction. Introductory analysis of required number of receiver samples per unit length was performed. Algorithm for tracking or recognising identical or new multipath components along the route based on simple geometry is developed. It was surprisingly observed that the size of visibility regions for most rays was at the level of the receiver sample granulation. This can be explained by the definition of visibility region and its conflict with the nature of diffraction, which was dominant propagation mechanism in this investigation. Based on the results, a modification of 3D geometry based stochastic channel models is suggested.

Izvorni jezik
Engleski

Znanstvena područja
Elektrotehnika

POVEZANOST RADA