Laurent Maviel

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This paper presents a propagation model generating time series of large-scale power variations for small-cell radio links intersected by vehicular traffic. The model combines stochastic processing and geometric computation. For each road crossing a link, a two-state process parameterized by mobility statistics represents the obstruction status. When the(More)
This paper describes the enhancement of a deterministic propagation model to take into account essential elements of the urban environment in small cell configurations. For lower antenna heights lots of interactions of the electromagnetic waves occur with urban furniture and vehicles. Coupled to diffuse scattering and urban furniture models, the output of(More)
This paper presents and characterizes large-scale variations of received power generated by vehicular traffic crossing a radio link. Measurements in the 2 GHz band for several small-cell configurations involve various transmitter heights, link distances and urban densities. Observations showed that stronger losses up to 30 dB are due to medium to high(More)
This paper investigates the possible gain in heterogeneous network power consumption when dynamically switching on or off small-cells depending on user traffic. Using a ray-based propagation model complemented with a space- and time-variant traffic model, the quality of service and power consumption of a large-scale realistic LTE heterogeneous network is(More)
We propose to analyze the impact of vehicular scattering on both individual users and global throughput of a LTE heterogeneous network. The studied network consists of a real world hexagonal configuration with 7 three-sector Macro Base Stations and 15 added Small Cells. Propagation modeling is site-specific and the main contribution of this paper relies on(More)
Future small-cell networks using the millimeter-wave (mmW) band to provide backhauling or user access need for adequate and innovative simulation tools in order to optimize the pre-deployment design and thus reduce installation and post-deployment optimization costs. The proposed paper makes some recommendations on the inputs and simulation blocks required(More)
Advanced radio channel modeling continues to be of great interest in order to facilitate innovation and pursue performance prediction of wireless networks; in particular, dual-polarized antenna systems for 4.5 and 5G require models that properly capture the complex phenomenon of depolarization. Accordingly, we present and validate a ray-based model for(More)
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