Indoor Office Propagation Measurements and Path Loss Models at 5.25 GHz

Xu, Ding; Zhang, Jianhua; Gao, Xin; Zhang, Ping; Wu, Yufei

doi:10.1109/vetecf.2007.185

Cited by 29 publications

(23 citation statements)

References 11 publications

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“…As discussed at the beginning of this section, it is confirmed that n XY is in-between n XY pri and n XY DMC but also in line with values reported in [1], [17], [21]. Hence, the need for path loss models where DMC is included is clearly demonstrated.…”

Section: Path Loss Parameters Fitting Techniquesupporting

confidence: 86%

Polarimetric Distance-Dependent Models For Large Hall Scenarios

Cheng

Gaillot

Tanghe

et al. 2016

IEEE Trans. Antennas Propagat.

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Abstract-A comprehensive polarimetric distance-dependent model of the power delay profile (PDP) and path gain is proposed. The model includes both Specular Multipath Components (SMC) and Dense Multipath Components (DMC); the latter being modeled with an exponential and power law. The parameters of the model were estimated from polarimetric measurements of a large hall radio channel under Line-Of-Sight (LOS) conditions at 1.3 GHz with a dedicated procedure. The validity and robustness of the proposed approach is provided by the good agreement between the polarimetric data and models for the investigated transmitter-receiver distance range. Furthermore, the description of the radio channel with path loss models is discussed for cases where the DMC is included and a two-step method to compute the path loss characteristics directly from the measured data is developed. The results of this contribution highlight the fact that a complete polarimetric description of all propagation mechanisms and related path loss models is desired to design faithful polarimetric radio channel models.Index Terms-Polarimetric measurement, Distance-dependent channel model, Indoor environment, Dense multipath component, path loss model.

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Section: Path Loss Parameters Fitting Techniquesupporting

confidence: 86%

Polarimetric Distance-Dependent Models For Large Hall Scenarios

Cheng

Gaillot

Tanghe

et al. 2016

IEEE Trans. Antennas Propagat.

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“…The estimate n = 1.14 of the path loss exponent of the standard path gain model is in the range of published values obtained from in-room measurement data [6] and references therein. Traditionally, exponent values lower than 2 are attributed to wave guiding effects.…”

Section: Discussionsupporting

confidence: 64%

“…Thus, they cover a whole building. Only few models are available in the literature that characterize propagation in a single room [6]. In this contribution we propose an in-room path loss model based on experimental observations of the behavior of the delay-power spectrum [7], [8] and on analogies to models used in room acoustics [9] and electromagnetic fields in cavities [10].…”

Section: Introductionmentioning

confidence: 99%

Model for the Path Loss of In-Room Reverberant Channels

Steinböck

Pedersen

Fleury

et al. 2011

2011 IEEE 73rd Vehicular Technology Conference (VTC Spring)

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Abstract-A general path loss model for in-room radio channels is proposed. The model is based on experimental observations of the behavior of the delay-power spectrum in closed rooms. In such a room, the early part of the spectrum observed at different positions typically consists of a dominant component (peak) that vanishes as the transmitter-receiver distance increases; the late part decays versus distance according to the same exponential law in delay regardless of the distance. These observations motivate the proposed model of the delay-power spectrum with an early dominant component and a reverberant component. The dominant component is modeled as a Dirac delta function weighted with a factor decaying according to an inverse distance power law (d −n ). The reverberant component is an exponentially decaying function versus delay with distancedependent onset. Its power decays exponentially with distance. The proposed model allows for the prediction of path loss, mean delay, and rms delay spread versus distance. We use measurements to validate the model. We observe good agreement of the model prediction for mean delay and rms delay spread.

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“…First, the measured channel path loss exponents are ranging between 1.2 and 1.6 for the co-polar links and are around 0.9 for the cross polar. Those exponents are in agreement with values reported in [1], [16], [20]. For the co-polar links, it is observed that n HH is larger than n V V…”

Section: B Xpd Characteristicssupporting

confidence: 92%

Polarimetric properties and modeling of the power delay profile in large hall scenarios

Cheng

Gaillot

Laly

et al. 2015

2015 European Conference on Networks and Communications (EuCNC)

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Abstract-A full-polarimetric model of the power delay profile (PDP) is proposed in a large hall scenario and validated with polarimetric measurements of a large open hall radio channel under Line-of-Sight conditions at 1.3 GHz. The measured radio channels were processed by the high-resolution parametric estimator RiMAX to estimate both the polarimetric specular multipath components (SMC) and dense multipath components (DMC). The model of the full-polarimetric distance-dependent PDP was derived from which the depolarization mechanisms are presented. In addition, it is demonstrated that the room electromagnetics theory applies to our scenario across all polarization links. The validity of the proposed model is provided by the good agreement between the polarimetric data and models. The results of this contribution highlight the fact that a complete polarimetric description of all propagation mechanisms is desired in polarimetric radio channel models.

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Indoor Office Propagation Measurements and Path Loss Models at 5.25 GHz

Cited by 29 publications

References 11 publications

Polarimetric Distance-Dependent Models For Large Hall Scenarios

Polarimetric Distance-Dependent Models For Large Hall Scenarios

Model for the Path Loss of In-Room Reverberant Channels

Polarimetric properties and modeling of the power delay profile in large hall scenarios

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