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Estimating the RF attenuation rate via roadside trees with extraction techniques
Author(s) -
Liu JiChyun,
Wei Chia Ping,
Chang DauChyrh,
Chang ChungChi,
Cheng Ching
Publication year - 2001
Publication title -
microwave and optical technology letters
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.304
H-Index - 76
eISSN - 1098-2760
pISSN - 0895-2477
DOI - 10.1002/mop.1279
Subject(s) - attenuation , interference (communication) , microwave , radio frequency , electronic engineering , channel (broadcasting) , wireless , electromagnetic interference , adjacent channel interference , engineering , computer science , electrical engineering , telecommunications , physics , optics
Modelings of the radio propagation channel are among the most important and fundamental issues. The levels of the desired signal and cochannel interference are associated with the measurement system. A new approach to estimate the RF attenuation rate (AR, dBm/m) with the extraction technique is introduced in this paper. Any changes due to an environmental disturbance or cochannel interference will cancel. The AR can be used to characterize the trees (or medium) with a linear expression. In practice, the attenuation rate results of four roadside trees are described based on data acquired from experiments employing an RF channel sounding system at 1800 MHz. It makes the estimations suitable for wireless communication systems. © 2001 John Wiley & Sons, Inc. Microwave Opt Technol Lett 30: 242–246, 2001.