Comparison of Measurements With Prediction Methods for Propagation by Diffraction at 88–108 MHz

Åsen, Walther

doi:10.1109/tap.2004.829405

Cited by 3 publications

(2 citation statements)

References 5 publications

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“…This model, with fewer restrictions, is more suitable than the previous methods [29]. In the range of 88-108 MHz, the authors in [32] term into account, with the addition of 0.67 multiplied by the next main diffraction term. Furthermore, in comparison with Epstein and Peterson models that provides perfect results just when diffractors are far apart; if not it is a poor predictor, where the models supposed that the totality excess loss for two diffractors can be considered as the sum of the individual losses calculated independently [33].…”

Section: C) Piquonard Modelmentioning

confidence: 99%

Statistical Analysis of Diffraction Loss in Outdoor Urban Microcells for 5g/6g Millimeter Wave Communications

Zekri¹,

Ajgou²

2022

PIER C

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Millimeter-wave (mmWave) frequencies are considered as candidate bands for 5G/6G mobile networks. Diffraction models are significant for predicting non-line-of-sight (NLOS) wireless channels while it is shown that the line of sight (LOS) path is usually blocked by buildings in urban area environments. A lot of investigations on the diffraction loss have been performed, and most of them just considered one obscuring object and a short propagation distance. In this paper, we conduct a statistical analysis of the diffraction loss in the outdoor NLOS in Urban Micro Cell, considering a transmitter (TX) and a receiver (RX) which are located at an aggregation point on the roof of a building. We have focused on analyzing the diffraction loss suffered by mmWave signals when they hit one or two obscuring points located over rooftop of the buildings. The objects have different heights located at various distances between TX and RX. We have considered the bands: 28 GHz, 38 GHz, 60 GHz, 73 GHz, and 100 GHz. The analysis is based on the diffraction model named Knife Edge Diffraction (KED). We have strictly followed the ITU Recommendations ITU-R P.526-15 (10/2019). In this work, we use two schemes that characterize the KED model, namely Single KED (SKED) and Double Isolated KED (DIKED). Different scenarios are performed by varying different parameters of the channel between TX and RX. The results show that the diffraction loss is inversely proportional to the distance between the obscuring object and the transmitter, the wavelength, and the distance between the TX and RX.

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Section: C) Piquonard Modelmentioning

confidence: 99%

Statistical Analysis of Diffraction Loss in Outdoor Urban Microcells for 5g/6g Millimeter Wave Communications

Zekri¹,

Ajgou²

2022

PIER C

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“…Karakteristik propagasi gelombang radio akan berbeda pada setiap lokasi. Propagasi yang disebabkan difraksi sangat penting untuk layanan radio yang beroperasi antara 30 hingga 1000 MHz [3]. Namun demikian, kualitas penerima yang dipengaruhi alam yang terjadi yang di luar kendali ini merupakan masalah yang menjadi obyek yang ingin diteliti dan dikaji terhadap stasiun radio siaran FM yang memberikan layanan di Kota Banda Aceh.…”

Section: Pendahuluanunclassified

Evaluasi Kuat Medan Pemancar Radio FM Pada Frekuensi 98,5-103,6 MHz di Kota Banda Aceh

Munadi¹,

Meutia

Fitriani³

2015

JRE

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Relative measurement error analysis in the process of the Nakagami-m fading parameter estimation

et al. 2011

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An approach to the relative measurement error analysis in the process of the Nakagami-m fading signal moments estimation will be presented in this paper. Relative error expressions will be also derived for the cases when MRC (Maximal Ratio Combining) diversity technique is performed at the receiver. Capitalizing on them, results will be graphically presented and discussed to show the influence of various parameters, such as diversity order and fading severity on the relative measurement error bounds

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Comparison of Measurements With Prediction Methods for Propagation by Diffraction at 88–108 MHz

Cited by 3 publications

References 5 publications

Statistical Analysis of Diffraction Loss in Outdoor Urban Microcells for 5g/6g Millimeter Wave Communications

Statistical Analysis of Diffraction Loss in Outdoor Urban Microcells for 5g/6g Millimeter Wave Communications

Evaluasi Kuat Medan Pemancar Radio FM Pada Frekuensi 98,5-103,6 MHz di Kota Banda Aceh

Relative measurement error analysis in the process of the Nakagami-m fading parameter estimation

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