Outdoor-to-Indoor path loss modeling for 0.8 to 37 GHz band

Imai, T.; Kitao, Koshiro; Tran, Ngochao; Omaki, Nobutaka; Okumura, Yukihiko; Nishimori, Kentaro

doi:10.1109/eucap.2016.7481469

Cited by 30 publications

(25 citation statements)

References 2 publications

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“…Table I collects the maximum and minimum values of the indoor linear attenuation factors per frequency. All the coefficients are very similar for all frequencies and they are aligned with the 0.49-0.6 dB/m reported in the literature for frequencies up to 8 GHz [5][6][7][8]. There is no strong frequency dependence.…”

Section: Indoor Propagation Model Extractionsupporting

confidence: 85%

“…Indoor propagation loss, typically modeled as a linear attenuation factor, was reported to be 0.6 dB/m and constant with frequency in the range from 0.8 to 8 GHz in [5]. A similar finding but with slightly lower factor of 0.49 dB/m was recently reported in [6] for the extended range from 0.8 to 37 GHz. With respect to indoor wall attenuation, [3] suggests to approximate it with the low external wall attenuation given for old buildings.…”

Section: Introductionsupporting

confidence: 75%

“…The multi-frequency expressions for indoor propagation (linear attenuation measured in corridors and internal wall loss) are given in (4)- (6).…”

Section: Multi-frequency Formulationmentioning

confidence: 99%

“…Differently, in [5], a constant penetration loss of 10 dB was found in the range from 0.8 to 8 GHz. Constant attenuation of 6.8 dB in the range from 0.8 to 37 GHz was recently reported in [6]. One of the first approaches to model the material and frequency dependencies was reported in [3], where a simulation based on several frequency-dependent composite models is presented for frequencies up to 60 GHz.…”

Section: Introductionmentioning

confidence: 99%

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An Empirical Outdoor-to-Indoor Path Loss Model From Below 6 GHz to cm-Wave Frequency Bands

Rodríguez

Nguyen

Kovács³

et al. 2017

Antennas Wirel. Propag. Lett.

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Abstract-This letter presents an empirical multi-frequency outdoor-to-indoor path loss model. The model is based on measurements performed on the exact same set of scenarios for different frequency bands ranging from traditional cellular allocations below 6 GHz (0.8, 2, 3.5 and 5.2 GHz), up to cm-wave frequencies (10, 18 and 28 GHz). The model has applicability similar to the typical 3GPP and ITU-R outdoorto-indoor simplified models, including the multi-frequency formulation recently included in the 3GPP TR 38.900. This letter highlights some of the details behind these simplified models and provides additional modeling for internal multi-wall attenuation and associated shadow fading.

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Section: Indoor Propagation Model Extractionsupporting

confidence: 85%

Section: Introductionsupporting

confidence: 75%

“…The multi-frequency expressions for indoor propagation (linear attenuation measured in corridors and internal wall loss) are given in (4)- (6).…”

Section: Multi-frequency Formulationmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

See 2 more Smart Citations

An Empirical Outdoor-to-Indoor Path Loss Model From Below 6 GHz to cm-Wave Frequency Bands

Rodríguez

Nguyen

Kovács³

et al. 2017

Antennas Wirel. Propag. Lett.

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show abstract

“…Since then, the O2I propagation characteristics have been studied in various aspects and frequency bands below 6 GHz [9][10][11] (and references therein). In addition, the recently published [12][13][14][15][16] reported the O2I characteristics for mmWave frequency bands. In addition, the recently published [12][13][14][15][16] reported the O2I characteristics for mmWave frequency bands.…”

Section: Introductionmentioning

confidence: 99%

Millimeter‐wave directional‐antenna beamwidth effects on the ITU‐R building entry loss (BEL) propagation model

Lee

Kim

et al. 2019

ETRI Journal

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Assuming omnidirectional antenna reception, the ITU‐R recently developed a new propagation model on building entry loss (BEL) for 5G millimeter‐wave frequency sharing and compatibility studies, which is a simplified outdoor‐to‐indoor path loss model. Considering the utilization of high‐gain narrow‐beamwidth beamforming, the omnidirectional‐based ITU‐R BEL model may not be appropriate to predict propagation characteristics for directional beamforming scenarios. This paper studies the effects of beamwidth on the ITU‐R BEL model. This study is based on field measurements collected with four different beamwidth antennas: omnidirectional, 10° horn, 30° horn, and 60° horn. The measurement campaigns were conducted at two types of building sites: traditional and thermally efficient buildings. These sites, as well as the measurement scenarios, were carefully chosen to comply with the ITU‐R BEL measurement guidelines and the ITU‐R building types. We observed the importance of accurate beam alignment from the BEL variation range. We were able to quantify the beamwidth dependency by fitting to a model that is inversely proportional to the beamwidth.

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Measurements

Kishiyama¹,

Imai²

2019

5G Technology

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Outdoor-to-Indoor path loss modeling for 0.8 to 37 GHz band

Cited by 30 publications

References 2 publications

An Empirical Outdoor-to-Indoor Path Loss Model From Below 6 GHz to cm-Wave Frequency Bands

An Empirical Outdoor-to-Indoor Path Loss Model From Below 6 GHz to cm-Wave Frequency Bands

Millimeter‐wave directional‐antenna beamwidth effects on the ITU‐R building entry loss (BEL) propagation model

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