Path Loss Model with Antenna Height Dependency under Indoor Stair Environment

Yu, Yu; Liu, Yang; Lu, Wen‐Jun; Zhu, Hongbo

doi:10.1155/2014/482615

Cited by 17 publications

(17 citation statements)

References 15 publications

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“…Various propagation mechanisms were identified by an image-based ray-tracing scheme. In [22,23], the path loss and root mean square (RMS) delay spread parameters were characterized with antenna height dependency in an indoor stair environment. Spatial diversity gains at 90% signal reliability were investigated for an off-body multiple-antenna transmitter system at 3, 4, and 5 GHz bands in an indoor stairwell [24].…”

Section: Introductionmentioning

confidence: 99%

Path loss model for indoor emergency stairwell environment at millimeter wave band for 5G network

Al-Samman¹,

Rahman²,

Hindia³

et al. 2018

Turk J Elec Eng & Comp Sci

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The unused millimeter-wave (mmWave) spectrum offers a superb opportunity to increase mobile broadband capacity due to the enormous amount of available bandwidth. Different candidate operating frequencies for 5G wireless networks are available at the mmWave band. For 5G wireless networks, the emergency case is one of the applications. This paper presents the outcome of indoor emergency stairwell measurement campaigns for 5G system at 26 GHz, 28 GHz, 32 GHz, and 38 GHz, which were conducted at the University Technology Malaysia, Kuala Lumpur, Malaysia. To effectively evaluate the performance of 5G wireless systems in these different bands, single-and multifrequency path loss models are proposed for this environment. This paper proposes a new path loss model based on a new physical anchor point referred to as physical-anchor stair (PAS) path loss model. In a single-frequency large-scale case study, the PAS and the floating intercept (FI) path loss model are investigated at the 20 GHz and 30 GHz bands. Moreover, this study is extended to cover the multifrequency path such as the alpha, beta, and gamma model and the close-in free space path loss model with frequency weight (CIF) model. The CIF model is developed in this paper. The proposed PAS model shows high accuracy (physically based model) and less complexity compared with the studied models. Results show that the path loss exponent values vary between 6.6 and 7.9 for all measured frequencies using the proposed PAS model and between 9.1 and 10.9 using the FI model.

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Section: Introductionmentioning

confidence: 99%

Path loss model for indoor emergency stairwell environment at millimeter wave band for 5G network

Al-Samman¹,

Rahman²,

Hindia³

et al. 2018

Turk J Elec Eng & Comp Sci

View full text Add to dashboard Cite

show abstract

“…The measurement system and the corresponding experimental scheme are described elaborately in Refs . The measurement is conducted by an Agilent 8720ET vector network analyzer (VNA).…”

Section: Stair Structure and Measurement Systemmentioning

confidence: 99%

“…Thus, the propagation characteristics under such an environment are essentially important to the indoor coverage of the 5G communication system. The propagation properties under stair environment have been studied . Basic propagation mechanisms are analyzed by using ray‐tracing method and verified by employing measurements .…”

Section: Introductionmentioning

confidence: 99%

Antenna‐height‐dependent delay spread model under indoor stair environment for small cell deployment in future mobile communications

Liu

et al. 2015

IEEJ Transactions Elec Engng

Self Cite

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A novel measurement-based antenna-height-dependent statistical root-mean-square (RMS) delay spread model under indoor stair environment is proposed. In this model, the RMS delay spread is described as a log-normal random variable with antennaheight-dependent parameters in both line-of-sight (LOS) and the non-LOS (NLOS) areas. The environmental independence of the RMS delay spread distribution is shown first. Then, the parameters of the proposed model are extracted using least-squares and maximum likelihood estimation. The accuracy of the proposed model is verified by the extensive measured data, and the mean values of the RMS delay spread are compared with those in other related works. Finally, the interdependence of RMS delay spread and the coherence bandwidth is investigated. The proposed model can be applied to the physical layer designs of small cells in future 5G and ubiquitous mobile communication systems.

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“…There has been an increase in attention given to the characterization of wave propagation along multifloor building's stairwell owing to the fact that it is among the least investigated indoor environments [1][2][3][4]. Additionally, the development of Incident Area Network (IAN) to provide communication service at emergency sites requires radio characteristics of the stairwell to be studied as public safety personnel normally use the stairwell when attending to emergency cases within a tall structure and expect uninterrupted wireless coverage [5][6][7].…”

Section: Introductionmentioning

confidence: 99%

“…Another PL model for frequency bands between 2.5 GHz and 2.69 GHz with consideration of different Rx 's antenna heights is presented in [2] for limited Tx -Rx distance range. Analysis of PL based on separation and walking distance along the stairwell is introduced in [3] at 2.4 GHz and 5.8 GHz.…”

Section: Introductionmentioning

confidence: 99%

Modelling the Impact of Operating Frequencies on Path Loss and Shadowing Along Multi-Floor Stairwell for 0.7 GHZ-2.5 GHZ Range

Aziz¹,

Rahman²

2014

PIER M

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Abstract-Given that building occupants and more importantly public safety personnel regularly use stairwell to move about different floors in a multi-floor building, wireless network coverage for the setting may come as necessary in order to ensure seamless telecommunication connectivity. Nevertheless, wireless network planning pertaining to multi-floor stairwell scenario requires unique radio characterization since the scenario is different from other indoor environments. This paper presents a frequency dependent path loss and shadowing model for the multi-floor stairwell environment that was developed and tested at six dog-leg style stairwells. The empirical model covers frequency spectrum from 0.7 GHz up to 2.5 GHz which envelop numerous public safety and long term evolution operating bands. The model demonstrates good precision and is shown to outperform standard path loss model when comparison was made since it includes site-specific parameters describing radio characteristics natural to stairwell setting. The straightforward mathematical expression of the model can easily be applied when setting up or studying wireless network for the stipulated frequency range with respect to multi-floor stairwell.

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Path Loss Model with Antenna Height Dependency under Indoor Stair Environment

Cited by 17 publications

References 15 publications

Path loss model for indoor emergency stairwell environment at millimeter wave band for 5G network

Path loss model for indoor emergency stairwell environment at millimeter wave band for 5G network

Antenna‐height‐dependent delay spread model under indoor stair environment for small cell deployment in future mobile communications

Modelling the Impact of Operating Frequencies on Path Loss and Shadowing Along Multi-Floor Stairwell for 0.7 GHZ-2.5 GHZ Range

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