Abstract
Given the disparity in signal transmission properties for both current bandwidths and millimeter wave radio frequencies, the present propagation models used for low frequency range up to few gigahertz are not suitable to be utilized for the path loss modelling techniques as well as modulation schemes for the high frequency ranges such as millimeter wave (mmWave) spectra. As a result, rigorous research on link analysis as well as path loss modeling are needed to create a broad and suitable transmission scheme with modeling variables that can handle a broad spectrum of mmWave frequency spectra. This paper proposes an improved path loss model for estimating the path loss in an indoor space wireless communication at 28 GHz and 38 GHz frequencies. The test results for the interior non-line-of-sight (NLOS) situations were collected every two meters over spacing of 24 m separating the transmitting and receiving antenna locations to make a comparison the well-known and improved large-scale generic path loss models. The results of the experimental studies obviously demonstrate that the improved propagation model works significantly better than the CI model, owing to its simple setup, precision, and accurate function. The results show that the presented improved model gives better performance. It is observed that the standard deviation of shadow fading can be significantly reduced in the NLOS scenario, implying greater accuracy in predicting the path loss in an indoor environment.
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Conceptualization, TO; Methodology, TO, PK and ME; Formal Analysis, TO and ME; Measurements, TO; Writing—Original Draft Preparation, TO; Writing, Review and Editing, PK; Supervision, PK; Project Administration, PK. All authors have read and agreed to the published version of the manuscript.
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Oladimeji, T.T., Kumar, P. & Elmezughi, M. An improved path loss model for 5G wireless networks in an enclosed hallway. Wireless Netw 30, 2353–2364 (2024). https://doi.org/10.1007/s11276-024-03675-8
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DOI: https://doi.org/10.1007/s11276-024-03675-8