Path loss prediction analysis by ray tracing approach for NLOS indoor propagation

Bhuvaneshwari, A.; Hemalatha, R.; Satyasavithri, T.

doi:10.1109/spaces.2015.7058202

Cited by 20 publications

(14 citation statements)

References 4 publications

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“…Smaller than this resolvable distance, the rays will be superimposed coherently with the LoS component. A polarisation‐dependent reflection coefficient for different materials is used at 28 GHz. A z ‐test is also performed for comparison of parameters of two‐ray and five‐ray path loss models obtained analytically, through ray‐tracing simulations and measurements. A commonly occurring scenario for future fifth generation (5G) deployments is closely positioned transmitter and receivers at indoor corridors. This commonly occurring scenario in a typical indoor corridor environment is studied. There are other works in the literature in which five, even more, first‐order reflections are taken into account [18–27]. We only considered rays experiencing the first‐order reflection.…”

Section: Literature Review and Contributionsmentioning

confidence: 99%

Multiple ray received power modelling for mmWave indoor and outdoor scenarios

Khawaja¹,

Özdemir²,

Erden³

et al. 2020

IET Microwaves Antenna & Prop

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Section: Literature Review and Contributionsmentioning

confidence: 99%

Multiple ray received power modelling for mmWave indoor and outdoor scenarios

Khawaja¹,

Özdemir²,

Erden³

et al. 2020

IET Microwaves Antenna & Prop

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“…The Fresnel-Kirchoff diffraction parameter ( at any given location between the transmitter and the receiver is given as [12][13][14][15] (2)…”

Section: Theoretical Backgroundmentioning

confidence: 99%

Remodelling of Lee’s Knife Diffraction Loss Model as a Function of Line of Site Percentage Clearance

Nwokonko¹

2017

IJTAM

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In this paper, remodeling of Lee's piecewise knife diffraction loss model is presented. The original Lee's piecewise knife diffraction loss model is expressed as a function of Fresnel-Kirchoff diffraction parameter. The computation of the Fresnel-Kirchoff diffraction parameter requires detailed terrain and link parameters. However, for quick link planning the Fresnel-Kirchoff diffraction parameter can be computed from the knowledge of the line of site percentage clearance alone. Moreover, in line of site link design, the required or acceptable obstruction clearance is specified in terms of line of site percentage clearance. Consequently, in this paper, the Lee's model is remodeled into new piecewise functions that are entirely functions of line of site percentage clearance. The new version of Lee's model is validated with the results of knife edge diffraction loss obtained from the original Lee's piecewise knife diffraction loss model. With the new model it is easier to determine the diffraction loss that will be caused by any obstruction at a given line of site percentage clearance.

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“…Currently, most of radio propagation researchers are highly recommending RT for propagation modeling because it is more suitable for radio wave propagation modeling [11]. The RT mainly consists three steps such as ray launching (RL), ray path searching and ray receiving [12].…”

Section: Introductionmentioning

confidence: 99%

A novel 3D ray launching technique for radio propagation prediction in indoor environments

2018

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Radio propagation prediction simulation methods based on deterministic technique such as ray launching is extensively used to accomplish radio channel characterization. However, the superiority of the simulation depends on the number of rays launched and received. This paper presented the indoor three-dimensional (3D) Minimum Ray Launching Maximum Accuracy (MRLMA) technique, which is applicable for an efficient indoor radio wave propagation prediction. Utilizing the novel MRLMA technique in the simulation environment for ray lunching and tracing can drastically reduce the number of rays that need to be traced, and improve the efficiency of ray tracing. Implementation and justification of MRLMA presented in the paper. An indoor office 3D layouts are selected and simulations have been performed using the MRLMA and other reference techniques. Results showed that the indoor 3D MRLMA model is appropriate for wireless communications network systems design and optimization process with respect to efficiency, coverage, number of rays launching, number of rays received by the mobile station, and simulation time.

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Path loss prediction analysis by ray tracing approach for NLOS indoor propagation

Cited by 20 publications

References 4 publications

Multiple ray received power modelling for mmWave indoor and outdoor scenarios

Multiple ray received power modelling for mmWave indoor and outdoor scenarios

Remodelling of Lee’s Knife Diffraction Loss Model as a Function of Line of Site Percentage Clearance

A novel 3D ray launching technique for radio propagation prediction in indoor environments

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