Analysis of outdoor propagation and multi-cell coverage from ray-based simulations in sub-6GHz and mmwave bands

Corre, Yoann; Tenoux, Thierry; Stephan, Julien; Letourneux, Florian; Lostanlen, Yves

doi:10.1109/eucap.2016.7481504

Cited by 16 publications

(13 citation statements)

References 12 publications

(15 reference statements)

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“…Published indoor and outdoor diffraction measurements show that diffraction has little contribution to the received signal power using various materials and geometries (edges, wedges, and circular cylinders) at 60 GHz and 300 GHz [25]- [27]. It was shown that the KED model agreed well with diffraction measurements for cuboids at 300 GHz [28], vegetation obstacles at 2.4, 5, 28, and 60 GHz [29], and for human blocking at 60 GHz [13]. Apart from the KED model, uniform theory of diffraction (UTD) models are also used.…”

Section: Diffraction Measurements and Models A Introduction Of Diffra...mentioning

confidence: 96%

Small-Scale, Local Area, and Transitional Millimeter Wave Propagation for 5G Communications

Rappaport

MacCartney

Sun

et al. 2017

IEEE Trans. Antennas Propagat.

140

121

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This paper studies radio propagation mechanisms that impact handoffs, air interface design, beam steering, and MIMO for 5G mobile communication systems. Knife edge diffraction (KED) and a creeping wave linear model are shown to predict diffraction loss around typical building objects from 10 to 26 GHz, and human blockage measurements at 73 GHz are shown to fit a double knifeedge diffraction (DKED) model which incorporates antenna gains. Small-scale spatial fading of millimeter wave received signal voltage amplitude is generally Ricean-distributed for both omnidirectional and directional receive antenna patterns under both line-of-sight (LOS) and non-line-of-sight (NLOS) conditions in most cases, although the log-normal distribution fits measured data better for the omnidirectional receive antenna pattern in the NLOS environment. Small-scale spatial autocorrelations of received voltage amplitudes are shown to fit sinusoidal exponential and exponential functions for LOS and NLOS environments, respectively, with small decorrelation distances of 0.27 cm to 13.6 cm (smaller than the size of a handset) that are favorable for spatial multiplexing. Local area measurements using cluster and route scenarios show how the received signal changes as the mobile moves and transitions from LOS to NLOS locations, with reasonably stationary signal levels within clusters. Wideband mmWave power levels are shown to fade from 0.4 dB/ms to 40 dB/s, depending on travel speed and surroundings.

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Section: Diffraction Measurements and Models A Introduction Of Diffra...mentioning

confidence: 96%

Small-Scale, Local Area, and Transitional Millimeter Wave Propagation for 5G Communications

Rappaport

MacCartney

Sun

et al. 2017

IEEE Trans. Antennas Propagat.

140

121

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“…The ray-based engine that is used to create the sub-THz prototype simulator has been successfully employed for more than 15 years in the sub-6 GHz band, and has already been experienced in the past few years in the mmWave domain up to 80 GHz [7]. The main evolutions that have currently been implemented are two-fold:…”

Section: Propagation Challenges and Channel Modelling In Sub-thz mentioning

confidence: 99%

Ray-based Deterministic Channel Modelling for sub-THz Band

Gougeon¹,

Corre²,

Aslam³

2019

2019 IEEE 30th International Symposium on Personal, Indoor and Mobile Radio Communications (PIMRC Workshops)

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Future wireless communications systems will require large network capacities beyond the capabilities of present and upcoming 5G technology. The trend of considering higher frequencies for their large bandwidths continues today into the sub-THz domain. The BRAVE project considers the frequencies in the 90-200 GHz spectrum, which have been considered in this paper. The challenges of channel modelling at sub-THz frequencies are described along with extensions made to a ray-based deterministic tool. The geographical and physical accuracies inherent to the ray-based tool are exploited to simulate two different scenarios. The first scenario is an indoor office scenario and the second is an outdoor in-street scenario. The application of the updated channel modelling properties of the ray-based tool provides interesting perspectives into the sub-THz channel modelling. This permits the development of realistic models for the evaluation, characterization and eventual deployment of such systems.

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“…The studied ray-based model was introduced in [2] and applied to mmWave case studies in [1]. It predicts the propagation of multi-paths, including the angles of departures (AoD), angles of arrival (AoA) and field strengths, into surburban or urban environments.…”

Section: Ray-based Prediction At 60 Ghzmentioning

confidence: 99%

“…In first part of the paper, the authors propose an extension of the work that was initiated in [1] on mmWave ray-based prediction. The representation of detailed vegetation in the geographical data allows for refined shadowing assessment and leads to more realistic path-loss statistics.…”

Section: Introductionmentioning

confidence: 99%

Assessing the performance of a 60-GHz dense small-cell network deployment from ray-based simulations

Corre¹,

Charbonnier²,

Aslam³

et al. 2016

2016 IEEE 21st International Workshop on Computer Aided Modelling and Design of Communication Links and Networks (CAMAD)

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Abstract-Future dense small-cell networks are one key 5G candidates to offer outdoor high access data rates, especially in millimeter wave (mmWave) frequency bands. At those frequencies, the free space propagation loss and shadowing (from buildings, vegetation or any kind of obstacles) are far stronger than in the traditional radio cellular spectrum. Therefore, the cell range is expected to be limited to 50 -100 meters, and directive high gain antennas are required at least for the base stations. This paper investigates the kind of topology that is required to serve a suburban area with a small-cell network operating at 60 GHz and equipped with beam-steering antennas. A real environment is considered to introduce practical deployment and propagation constraints. The analysis relies on Monte-Carlo system simulations with non-full buffer, and raybased predictions. The ray-tracing techniques are today identified as a relevant solution to capture the main channel properties impacting the beam-steering performance (angular dispersion, inter-link correlation); and the one involved in the present study was specifically enhanced to deal with detailed vegetation modeling. In addition to the user outage, the paper evaluates the evolution of the inter-cell interference along with the user density, and investigates the network behavior in case of local strong obstructions.

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Analysis of outdoor propagation and multi-cell coverage from ray-based simulations in sub-6GHz and mmwave bands

Cited by 16 publications

References 12 publications

Small-Scale, Local Area, and Transitional Millimeter Wave Propagation for 5G Communications

Small-Scale, Local Area, and Transitional Millimeter Wave Propagation for 5G Communications

Ray-based Deterministic Channel Modelling for sub-THz Band

Assessing the performance of a 60-GHz dense small-cell network deployment from ray-based simulations

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