The industrial indoor channel: Statistical analysis of the power delay profile

Tanghe, Emmeric; Joseph, Wout; Bruyne, Jeffrey De; Verloock, Leen; Martens, Luc

doi:10.1016/j.aeue.2009.06.003

Cited by 18 publications

(11 citation statements)

References 11 publications

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“…The factories have concrete floors and metal ceilings. Moreover, building walls are made of thick concrete [14]. This is anticipated to lead to severe multipath.…”

Section: Channel Modelling Of Industrial Wireless Systemmentioning

confidence: 99%

“…The industrial channel is represented by distance dependent pathloss, log normally distributed shadowing loss and Nakagami-m multipath fading. Table I presents the assumed parameters for industrial channel which is compiled from several research studies [7,[14][15]. Each channel is represented by a number of multipath components enriched by the scattered industrial environment.…”

Section: Channel Modelling Of Industrial Wireless Systemmentioning

confidence: 99%

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A Novel Robust and Low-Complexity Spacetime Codes for Industry 4.0 Systems

Abouzeid¹

2018

IJWMN

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This paper proposes different robust and low-complexity space time codes which provide more reliability for industrial automation. An innovative synchronized uplink system configuration for an Industrial Environment is proposed. Mathematical framework for estimating the channel phase of each Slave Node (SN) is developed. Furthermore, the channel is practically estimated based on an innovative method using parallel sequence spread spectrum (PSSS) implemented in Universal Software Radio Peripheral (USRP). The proposed space time codes are applied in the uplink of an industrial communication system where the channel is modelled using Quasi Deterministic Radio Channel Generator (Quadriga) which follows a geometry-based stochastic approach. Simulation results exposed that the proposed codes surpass Alamouti code for Industrial Automation. The bit error rate (BER) performance demonstrates that the achieved coding gain for the proposed codes is higher than Alamouti code leading to more robust communication. Furthermore, a low complexity decoders based on minimum mean squared error (MMSE) and zero forcing (ZF) algorithms are designed at the receiver side. The proposed codes give a predominant execution against the state-of-the-art space time codes for Industry 4.0.

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“…The factories have concrete floors and metal ceilings. Moreover, building walls are made of thick concrete [14]. This is anticipated to lead to severe multipath.…”

Section: Channel Modelling Of Industrial Wireless Systemmentioning

confidence: 99%

Section: Channel Modelling Of Industrial Wireless Systemmentioning

confidence: 99%

A Novel Robust and Low-Complexity Spacetime Codes for Industry 4.0 Systems

Abouzeid¹

2018

IJWMN

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“…It is known that the wave propagation characteristics in industrial environments are different from those in offices and residential indoor environments due to a number of factors including the presence of highly reflective metallic structures (machinery) [2]. The successful design and deployment of wireless communication systems in industrial settings necessitates a good knowledge of the propagation characteristics of industrial channels.…”

Section: Introductionmentioning

confidence: 99%

Geometry-based modeling of wideband industrial indoor radio propagation channels

Ai¹,

Hogstad²,

Cheffena³

et al. 2015

IECON 2015 - 41st Annual Conference of the IEEE Industrial Electronics Society

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In this paper, we present a geometrical scattering model for a typical class of industrial indoor environments. The proposed industrial reference model takes into account scattering components arising from metallic structures and the surrounding walls of the investigated environment. Starting from the geometrical scattering model, we derive the analytical expressions of the probability density function (PDF) of the angle of arrival (AoA), PDF of the time of arrival (ToA), and the autocorrelation function (ACF) in the frequency domain. The obtained results reveal a large difference between industrial channels and other home and office environments. The theoretical results of the reference model are validated by simulation results of a channel simulator designed by employing the sum-of-cisoids (SOC) principle. The proposed channel model is useful for the design and performance evaluation of wireless communication systems operating in industrial environments. Index Terms-Industrial indoor channels, wideband channel model, multipath propagation, geometry-based channel model.

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“…The wall behind position 2 (indicated as (1) in Fig. 3) and the two dividing walls ( (2) [24]. N 0 is the number of the measured channel response samples in this frequency width ∆f win,mov .…”

Section: A Measurements and Data Processingmentioning

confidence: 99%

Performance Degradation Due to Multipath Noise for Narrowband OFDM Systems: Channel-Based Analysis and Experimental Determination

Heereman

Joseph

Tanghe

et al. 2015

IEEE Trans. Wireless Commun.

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Abstract-The performance of OFDM systems over a multipath channel can strongly degrade due to the propagation delay spread. The distortion of the received signal over the FFT window, is referred to as multipath noise. This work aims to determine analytically the performance loss due to multipath noise as a function of OFDM and channel parameters for narrowband OFDM systems. First, it is investigated whether it is possible to describe the multipath noise, varying over different OFDM packets due to the temporal variation of the channel, by an effective noise factor F delay , from which the loss factor is directly determined. Secondly, the theory of room electromagnetics is applied to develop a closed-form expression for F delay as a function of the OFDM and reverberation parameters. This analytical method is validated with excellent agreement. Finally, the loss factor is determined for IEEE 802.11 based on channel measurements in 2 large conference rooms, providing values up to 19 dB for an 800 ns cyclic prefix length.

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The industrial indoor channel: Statistical analysis of the power delay profile

Cited by 18 publications

References 11 publications

A Novel Robust and Low-Complexity Spacetime Codes for Industry 4.0 Systems

A Novel Robust and Low-Complexity Spacetime Codes for Industry 4.0 Systems

Geometry-based modeling of wideband industrial indoor radio propagation channels

Performance Degradation Due to Multipath Noise for Narrowband OFDM Systems: Channel-Based Analysis and Experimental Determination

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