標題: A novel and efficient hybrid model of radio multipath-fading channels in indoor environments
作者: Tarng, JH
Liu, WS
Huang, YF
Huang, JM
電信工程研究所
Institute of Communications Engineering
關鍵字: fading;field strength measurement;indoor environment;radio propagation model
公開日期: 1-Mar-2003
摘要: This paper presents a novel and efficient hybrid model combining a two-dimensional (2-D) site-specific model and a statistical model to characterize multipath fading in indoor environments. The site-specific, model describes the propagation effects of interior walls and building walls. The latter model characterizes the effect of scattering due to rough surface boundaries and/or randomly positioned scatterers such as furniture and personnel, which significantly affects small-scale fading. The hybrid model is computationally efficient since only the 2-D site-specific model is needed. In addition to Accurately predicting mean field strength, the model can effectively quantify the relative mean contribution of diffused scattering with a factor r. The factor is also an effective index to quantify the cluttering strength of the propagation environment: 1) light-cluttering situation r less than or equal to 0.35 and 2) heavy-cluttering situation r greater than or equal to 0.65. Some blind tests validate the effectiveness of the model. A large amount of experimental data for 2.44-GHz radio at many different sites shows that a Nakagami distribution describes the fading distribution well.
URI: http://dx.doi.org/10.1109/TAP.2003.809822
http://hdl.handle.net/11536/28043
ISSN: 0018-926X
DOI: 10.1109/TAP.2003.809822
期刊: IEEE TRANSACTIONS ON ANTENNAS AND PROPAGATION
Volume: 51
Issue: 3
起始頁: 585
結束頁: 594
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