Unified approach to predict of LOS characteristics in the urban microcellular environments

N. Blaunstein, M. Levin

Research output: Contribution to conferencePaperpeer-review

Abstract

This work presents experimental results carried out by the communication group of Tadiran Ltd., as well as, theoretical predictions obtained both by Bertoni et al. [1, 2] and Tadiran's group [3, 4] for the estimation of the effectiveness of the MultiGain Wireless Local Loop (MWLL) system developed by Tadiran for use in urban areas with regularly distributed rectangular rows of buildings, when both base station antenna and the radio port antenna are at the street level below the rooftops. The experiments are examined in different propagation conditions: Line-of-Sight (LOS) along the street level, and obstructed (« clutter») conditions, when both the antennas are placed in the environment with strong shadowing surrounding them. To predict these experimental conditions, in the first case a model of 3D-multislit impedance waveguide (earlier developed for the 2D and 3D case of perfectly conductive waveguide in [3]) is proposed to estimate the path loss at the street level and at the street intersections [4], respectively. For the second case the 2D-model of multidiffraction from the building roofs according to [1, 2] is used in conjunction with actual variations of building heights, the distances between them and the actual base station antenna height variations. The contributions in path loss is obtained to predict the experimentally observed coverage effects and the microcell shape for MGWLL systems in urban and suburban areas with regularly distributed rows of buildings and rectangularly crossing streets.

Original languageEnglish
Pages124-129
Number of pages6
DOIs
StatePublished - 1 Jan 1997
Event1997 27th European Microwave Conference, EuMC 1997 - Jerusalem, Israel
Duration: 8 Sep 199712 Sep 1997

Conference

Conference1997 27th European Microwave Conference, EuMC 1997
Country/TerritoryIsrael
CityJerusalem
Period8/09/9712/09/97

ASJC Scopus subject areas

  • Computer Networks and Communications
  • Hardware and Architecture
  • Electrical and Electronic Engineering
  • Engineering (all)

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