نتایج جستجو برای: urban radio propagation

تعداد نتایج: 372900  

2014
J. S Ojo A. Adekunle

As the migration of wireless communication network from one generation to another continue, radio wave propagation model or path loss model plays a very significant role in achieving an optimum performance as well as suitability over different locations of interest. In this research, investigation of radio communication channel behavior based on practical measurement in the L-band frequency in ...

پایان نامه :دانشگاه بین المللی امام خمینی (ره) - قزوین - دانشکده مهندسی معماری و شهرسازی 1388

nowadays,tourism industry considered as one of the main sources of income of a country.unfortunately and despite of owning plenty of cultural historical and natural attractions, iran has not reached to a proper position in this field. besides, the historical cities of a country are considered as the income resource and national wealth of it. qazvin with a rich cultural precedent, have suitable ...

Journal: :International Journal of Microwave and Wireless Technologies 2022

Abstract Extreme-high-speed communication exceeding 100 Gbps is one requirement for 6G. To satisfy extreme-high-speed-communication, solution to utilize terahertz bands above GHz. determine the new radio-interface technologies and service frequency 6G, propagation characteristics GHz need be understood. In this paper, we introduce our radio-network topology 6G then show dependency of key phenom...

1999
Kimmo Kalliola Juha Laurila Martin Toeltsch Klaus Hugl Pertti Vainikainen Ernst Bonek

Realistic spatial channel models are essential for development of future wideband mobile communication systems, particularly when adaptive antennas at the base stations are considered. Channel models are prerequisite for the performance evaluation of different adaptive antenna solutions and estimation of the obtained capacity gain. Realistic models require channel measurements to prove their as...

Journal: :Annales des Télécommunications 2003
Sylvain Collonge Gheorghe Zaharia Ghaïs El Zein

This paper presents some results of a study concerning the radio propagation at 60 GHz in residential environments performed by the IETR (Electronic and Telecommunication Institute of Rennes, France). This study is part of a RNRT1 project named "COMMINDOR"2. This exploratory project concerns the very high data rate (155 Mbps) and small range (about 10 m) radio communication systems for future h...

Journal: :The Journal of the Institute of Television Engineers of Japan 1967

Journal: :Journal of Research of the National Bureau of Standards, Section D: Radio Propagation 1959

Journal: :Journal of geomagnetism and geoelectricity 1959

Journal: :Publications of the Astronomical Society of Australia 2001

Journal: :European Transactions on Telecommunications 2006

نمودار تعداد نتایج جستجو در هر سال

با کلیک روی نمودار نتایج را به سال انتشار فیلتر کنید