Measurement and Analysis of Channel Characteristics in Reflective Environments at 3.6 GHz and 14.6 GHz

Zhou, Xin; Zhang, Zhong; Bian, Xin; He, Ruisi; Sun, Ruoyu; Guan, Ke; Liu, Ke; Guo, Xiaotao

doi:10.3390/app7020165

Cited by 4 publications

(2 citation statements)

References 27 publications

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“…It is worth noting that the path loss exponent values derived in this study are less than the values described by Sreedevi et al [18], where path loss exponents of 2.74 and 2.9 were measured at 3.4 GHz and 5.2 GHz, respectively. Nonetheless, higher values have been shown by [19], where the path loss exponents from 1.51 to 1.69 were measured at 3.6 GHz. These differences can be explained because of the specific qualifications of the scenario and propagation conditions.…”

Section: Measurement Resultsmentioning

confidence: 86%

Path Loss Characterization in an Indoor Laboratory Environment at 3.7 GHz in Line-Of-Sight Condition

et al. 2020

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The objective of this work is to propose experimental path loss propagation models for communication channels in indoor environments. In this sense, an experimental path loss characterization has been achieved, according to the measurements campaign carried out in a typical scenario of a university campus. These narrowband measurements were collected in the laboratory environment at 3.7 GHz in line-of-sight (LOS) condition. Also, these measurements were carried out at night to simulate stationary channel conditions. Thus, the results obtained show the values of the parameters of the close-in (CI) free space reference distance and floating-intercept (FI) path loss models, in terms of the transmitter and receiver separation distance. It should be noted that these values of the path loss models have been extracted applying linear regression techniques to the measured data. Also, these values agree with the path loss exponent values presented by other researchers in similar scenarios. The path loss behavior can be described with the implementation of these models. However, more measurement campaigns are needed to improve the understanding of propagation channel features, as well as to obtain better precision in the results obtained. This, in order to optimize the deployment and performance of next fifth-generation (5G) networks that combine indoor environments to offer their services and applications.

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Section: Measurement Resultsmentioning

confidence: 86%

Path Loss Characterization in an Indoor Laboratory Environment at 3.7 GHz in Line-Of-Sight Condition

et al. 2020

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“…Wireless communication has been considered a must in such environments because its propagation medium is air. Nevertheless, wireless system performance largely depends on the channel characteristics, making it very necessary to study radio propagation in such environments [3].…”

Section: Introductionmentioning

confidence: 99%

Uhf Wave Propagation in Mine Shaft Environment

Xue¹,

Tan²,

Shi³

2018

PIER M

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Wireless communication is very valuable in underground mines, in which channel characterization plays an important role. In this paper, both narrowband and wideband measurements at three typical ultra-high frequencies of 433, 900 and 2400 MHz in a real mine shaft are performed. To our knowledge, this is the first work focusing on radio propagation in the mine shaft environment. Important channel characteristics, such as the path loss, delay spread and the number of multipath components were extracted from the measured data and compared with that in tunnel channels. The effects of frequency and antenna position on the path loss were investigated. The relationship between the root-mean-square (RMS) delay spread and the transmitter-receiver distance was also analyzed. The results will deepen our understanding of the mine shaft channel and help to design shaft wireless systems.

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