Fading Duration in Line-of-sight Radio Links at 6 GHz

Autor: Jan Bogucki, Ewa Wielowieyska
Jazyk: angličtina
Rok vydání: 2013
Předmět:
Zdroj: Journal of Telecommunications and Information Technology, Iss 2 (2013)
Druh dokumentu: article
ISSN: 1509-4553
1899-8852
DOI: 10.26636/jtit.2013.2.1210
Popis: Broadband fixed wireless access, local multipoint distribution service networks are promising wireless solutions to connect fixed users to the backbone network instead of wired copper or fiber optic networks, via point-to-multipoint cellular networks. Channel capacity is of primary importance in broadband fixed wireless access networks due to increasing demand for multimedia services and possibility of providing wireless internet. Modern radio transmission systems are specifically designed for meeting two main objectives: to provide a solution for long distance networks with high transmission capacity, and to guarantee the highest link quality. Availability of a radio-relay system is very important and dependent on many factors, particularly propagation conditions in the troposphere. The article describes wave propagation that determines the performance of a radio-relay path at 6 GHz. Attenuation of received signal level measured in this frequency range depends on propagation condition on terrestrial path. Examples of measured fading duration of are presented.
Databáze: Directory of Open Access Journals