Indoor-to-outdoor path-loss models for femtocell predictions

Corre, Yoann; Stephan, Julien; Lostanlen, Yves

doi:10.1109/pimrc.2011.6140082

Cited by 17 publications

(8 citation statements)

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“…The location of APs is drawn randomly, but with some constraints to prevent from having two APs in the same room (or "apartment"). The propagation loss is simulated from a Volcano ray-based model using parameters that were previously calibrated for the prediction of dense femto-cell deployments [6]. The propagation is computed inside the building where the AP is located, but also in surrounding streets and other buildings.…”

Section: B Wifi Abstraction Modelmentioning

confidence: 99%

Assessing the WiFi offloading benefit on both service performance and EMF exposure in urban areas

Brau¹,

Stephan²,

Díez

et al. 2016

2016 Wireless Days (WD)

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In this paper we assess the benefit of WiFi offloading over dense urban scenarios in terms of both Quality of Service (QoS) and Electromagnetic Field (EMF) exposure. This study relies on results obtained with two complementary simulation platforms: a two-tier dynamic system-level simulator and a 3D coverage-based simulator. Outputs are usual service coverage key performance indicators, handover probability statistics, as well as common and innovative metrics for EMF exposure characterization that jointly take into account the contributions from the base-station and the User-Equipment (UE) transmissions. The main outcome is that, for elastic services, the best QoS and minimum global EMF exposure are jointly achieved with maximum WiFi offloading.

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Section: B Wifi Abstraction Modelmentioning

confidence: 99%

Assessing the WiFi offloading benefit on both service performance and EMF exposure in urban areas

Brau¹,

Stephan²,

Díez

et al. 2016

2016 Wireless Days (WD)

Self Cite

View full text Add to dashboard Cite

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“…The received power is collected in the surrounding streets. Exploitation of these measurements is shortly reported in next sections, however details may be found in [11].…”

Section: Overviewmentioning

confidence: 99%

“…An enhanced version of this model was presented in [11] leading to more realistic local variations and significant reduction in the mean error sensitivity. The main modification consists in the introduction of multiple paths diffracted at the window edges.…”

Section: Presentation Of the Site-specific Pathloss Modelmentioning

confidence: 99%

“…PL MICRO is the outdoor propagation losses. Its formulation at frequency 2.1 GHz is derived from the abovementioned CW measurements [11]:…”

Section: Elaboration Of the Analytical Indoor-outdoor Pathloss Modelmentioning

confidence: 99%

“…First, it relies on the generation of random 3D FAP deployments and realistic pathloss models especially for the FAP indoor-to-outdoor scenario [11]. Two complementary approaches for two different applications are proposed: a synthetic model for realization of small-scale or illustrative case studies and a real model for realistic and largescale two-tier network performance evaluation.…”

Section: Introductionmentioning

confidence: 99%

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3D coverage analysis of LTE urban heterogeneous networks with dense femtocell deployments

Letourneux¹,

Corre²,

Suteau³

et al. 2012

J Wireless Com Network

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Femtocell technology recently gained attention due to its potential benefits for mobile operators (significant capacity offload and extension of the coverage at low cost) but there are still hard technical challenges to be addressed (e.g., the optimization of the interference management). Furthermore, the deployment strategies are still in question, such as the femtocell access-mode (open or closed) and the spectrum usage to adopt. Consequently, reliable simulations are necessary in the perspective of massive femtocell deployments, in particular for characterization of the impact on the coverage quality. An original solution is introduced and exploited in this article. It offers two complementary approaches for two different applications: a synthetic model for realization of small-scale or illustrative case studies and a real model for realistic and large-scale heterogeneous network performance evaluation. It relies on a suite of simulation tools including the generation of random 3D femtocell deployments in synthetic or real environments; realistic pathloss predictions; and a 3D downlink coverage performance analysis (i.e., considering all floors) of long-term evolution heterogeneous networks. A first study shows not only a large improvement of coverage quality for femtocell users, but also a very significant degradation for non-subscribers in the vicinity of closed-access femtocells. The femtocells have a strong impact locally (gain or degradation depending on the access-mode and user type) and not only at their own floor. Therefore, a 3D evaluation is relevant. Then, a second study offers realistic and large-scale analyses of the coverage evolution after corporate femtocells have massively been deployed in urban macrocells. The results show a moderate impact on the average spectral efficiencies but a strong impact locally. In this study, closed-access femtocells cause dead zones for non-subscribers in 15% of indoor areas leading to non-uniform service coverage, whereas they increase the spectral efficiency of femtocell subscribers (by 1.5 bps/Hz in 20% of indoor areas). These are critical information for a mobile operator since the experience of its customers is much affected by the femtocell deployment and by the selected access mode.

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Seamless Indoor/Outdoor Coverage in5G

et al. 2020

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Densely deployment of the small cells in 5G networks will bring high‐quality service to the end users as well as will solve the small footprint coverage problem of millimeter‐waves. The increase in the number of small cells will require self‐organized systems to enable the seamless transaction between heterogeneous network environment. Therefore, a survey‐style study on self‐organized seamless coverage in 5G, covering millimeter‐wave features and its indoor and outdoor coverage along with some machine learning techniques are presented in this article.

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Indoor-to-outdoor path-loss models for femtocell predictions

Cited by 17 publications

References 1 publication

Assessing the WiFi offloading benefit on both service performance and EMF exposure in urban areas

Assessing the WiFi offloading benefit on both service performance and EMF exposure in urban areas

3D coverage analysis of LTE urban heterogeneous networks with dense femtocell deployments

Seamless Indoor/Outdoor Coverage in5G

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