Measurement‐based analysis of specular and dense multipath components at 94 GHz in an indoor environment

Hanssens, Brecht; Martínez-Inglés, María-Teresa; Tanghe, Emmeric; David, Paul A.; Molina‐Garcia‐Pardo, José‐María; Oestges, Claude; Martens, Luc; Joseph, Wout

doi:10.1049/iet-map.2017.0553

Cited by 7 publications

(6 citation statements)

References 12 publications

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“…This causes a pulse to spread in time. Therefore, we will investigate the PDP [33,34] and PAP [35,36]. Apart from modelling the MPCs, we will model the signal attenuation, i.e.…”

Section: Channel Soundermentioning

confidence: 99%

Channel modelling of a cooker hob environment for smart kitchens

Beelde

Podevijn

Tanghe

et al. 2020

IET Microwaves, Antennas & Propagation

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This study presents a study on the radio channel modelling for realising reliable wireless communication in kitchen environments. The study allows optimising the wireless communication between a cooking pot and the kitchen hood in a smart home's kitchen. The delay, angular and path loss characteristics of the wireless channel are obtained from channel sounding measurements. The authors compared path loss at frequencies 868 MHz, 2.4 and 5.25 GHz. The influence of the metallic pot on the antenna characteristics is assessed by measuring the radiation pattern of the antenna. The antenna gain increases when the antenna is placed next to the metallic pot. Based on the channel sounding measurements and antenna model, a two‐ray channel model is proposed consisting of one line‐of‐sight component and a component caused by reflections on the hood and hob. For the validation of the proposed model, a narrowband patch antenna is designed and used for measurements in a real kitchen. The validation confirms the general applicability of the proposed method. The results of the joint channel and antenna model are used in link budget calculations. Via the link budget, the minimum required TX power to allow reliable wireless communication is calculated.

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“…This causes a pulse to spread in time. Therefore, we will investigate the PDP [33,34] and PAP [35,36]. Apart from modelling the MPCs, we will model the signal attenuation, i.e.…”

Section: Channel Soundermentioning

confidence: 99%

Channel modelling of a cooker hob environment for smart kitchens

Beelde

Podevijn

Tanghe

et al. 2020

IET Microwaves, Antennas & Propagation

Self Cite

View full text Add to dashboard Cite

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“…The frequency-dependent model of the average absorption coefficient α(f ) can be easily determined from (7) and (13) and is shown in Fig. 3 (b) along with the experimental values.…”

Section: B Average Absorption Coefficientmentioning

confidence: 99%

“…It showed that the RT decreases for increasing frequency and validated the model by measurement and by comparison to reported results in the literature. Other work [13] suggested that the indoor scenario ceases to reverberate and the room electromagnetic theory is not applicable anymore at frequencies as high as 94 GHz.…”

Section: Introductionmentioning

confidence: 99%

Frequency-Dependence Characterization of Electromagnetic Reverberation in Indoor Scenarios Based on 1–40 GHz Channel Measurements

Yusuf

Tanghe

Martínez-Inglés

et al. 2019

Antennas Wirel. Propag. Lett.

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A novel model for the reverberation time is proposed in this letter, based on Room Electromagnetics theory. While the commonly used models consider absorption based on a constant rate of wall interactions within a given time, the proposed model takes the variance of interactions into account. Moreover, the frequency-dependency of electromagnetic reverberation characteristics in indoor environments is experimentally investigated from 1 to 40 GHz. The reverberation time is found to be a decreasing function of frequency. A model is then developed to predict the room's quality factor, reverberation time, and average absorption coefficient. Good agreement is obtained with the limited results reported in the literature for similar scenarios. This approach aims to be an accurate alternative to the reverberation time measurements and computations in indoor environments by linking it to the theory of electromagnetic fields in cavities.

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“…A very few short-range multipath channel measurements have also been reported for above-83 GHz frequencies, including those by Hanssens et al [9] analyzing specular and diffusive multipath propagation mechanisms at 94 GHz and reporting dominance of specular mechanism and hence small delay spread up to 15 ns. Similar level of delay spread was reported by Pometcu and D'Errico [10] for transmit-receive (Tx-Rx) distances up to 11 m, according to their indoor measurements covering 126-156 GHz frequencies.…”

Section: Introductionmentioning

confidence: 99%

Large-Scale Parameters of Spatio-Temporal Short-Range Indoor Backhaul Channels at 140 GHz

Nguyen¹,

Haneda²,

Jan³

et al. 2020

Preprint

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The use of above-100 GHz radio frequencies would be one of promising approaches to enhance the fifth-generation cellular further. Any air interface and cellular network designs require channel models, for which measured evidence of largescale parameters such as pathloss, delay and angular spreads, is crucial. This paper provides the evidence from quasi-static spatiotemporal channel sounding campaigns at two indoor hotspot (InH) scenarios at 140 GHz band, assuming short-range backhaul connectivity. The measured two InH sites are shopping mall and airport check-in hall. Our estimated omni-directional large-scale parameters from the measurements are found in good match with those of the Third Generation Partnership Project (3GPP) for new radios (NR) channel model in InH scenario, despite the difference of assumed link types and radio frequency range. The 3GPP NR channel model is meant for access links and said to be valid up to 100 GHz, while our measurements cover shortrange backhaul scenarios at 140 GHz. We found more deviation between our estimated large-scale parameters and those of the 3GPP NR channel model in the airport than in the shopping mall.

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Measurement‐based analysis of specular and dense multipath components at 94 GHz in an indoor environment

Cited by 7 publications

References 12 publications

Channel modelling of a cooker hob environment for smart kitchens

Channel modelling of a cooker hob environment for smart kitchens

Frequency-Dependence Characterization of Electromagnetic Reverberation in Indoor Scenarios Based on 1–40 GHz Channel Measurements

Large-Scale Parameters of Spatio-Temporal Short-Range Indoor Backhaul Channels at 140 GHz

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