Realistic Interference Simulations in a Data Center Offering Wireless Communication at Low Terahertz Frequencies

Eckhardt, Johannes M.; Herold, Christoph; Friebel, Björn; Dreyer, Nils; Kürner, Thomas

doi:10.23919/isap47258.2021.9614511

Cited by 8 publications

(8 citation statements)

References 3 publications

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“…Again, this holds true for both indoor and outdoor environments. The measured multipath richness may cause inter-user interference [42], [48]. The use of directional antennas can reduce the multipath richness (though significant multipath might occur even when using directional antennas at both link ends, particularly in outdoor environments).…”

Section: A Common Insightsmentioning

confidence: 99%

THz Measurements, Antennas, and Simulations: From the Past to the Future

et al. 2023

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In recent years, terahertz (THz) systems have become an increasingly popular area of research thanks to their unique properties such as extremely high data rates towards Tb/s, submillimeter localization accuracy, high resolution remote sensing of materials, and remarkable advances in photonics and electronics technologies. This article traces the progress of THz measurements, antennas and simulations, from historical milestones to the current state of research and provides an outlook on the remaining challenges.INDEX TERMS Channel modeling, history, MTT 70th anniversary special issue, on-chip antennas, raytracing, THz communications, THz measurements and simulations.This article has been accepted for inclusion in a future issue of this journal. Content is final as presented, with the exception of pagination. This article has been accepted for inclusion in a future issue of this journal. Content is final as presented, with the exception of pagination.

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Section: A Common Insightsmentioning

confidence: 99%

THz Measurements, Antennas, and Simulations: From the Past to the Future

et al. 2023

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“…Table 3 summarizes all combinations of simulation parameters that are included in the complete data set. The complete simulation results can be found at (Eckhardt, Herold, Jung, et al., 2021). Due to the multitude of different simulation sets, the following evaluation has been conducted on a subset of simulation results showing the key findings on the P2P link analysis for ToR scenarios.…”

Section: Top‐of‐rack Link Analysis In a Data Center Scenariomentioning

confidence: 99%

“…For reasons of visibility, the direct path is not plotted here. The resulting MPCs from the ray tracing given by amplitude and delay that are part of the published research data (Eckhardt, Herold, Jung, et al., 2021) are fed to the LLS to examine the link performance. Figure 8 illustrates an exemplary discrete IR h TX,C [ n ] of the channel convolved with an RRC transmit pulse and sampled with a sampling frequency of 3.52 GHz representing 575 filter coefficients.…”

Section: Top‐of‐rack Link Analysis In a Data Center Scenariomentioning

confidence: 99%

“…The channel representation includes broadband channel models, the processing of time discrete signals in the equivalent low pass region, and RF impairments. As a result of the integration in the SiMoNe framework, the LLS benefits from an interface to propagation simulations via ray‐optical channel predictions in realistic environments and system level functionalities that allow for an easily accessible and realistic interference simulation (Eckhardt, Herold, Friebel, et al., 2021). Moreover, the combination of propagation channels gained from deterministic 3D models, bit transmission over the PHY and context‐based system level simulations with realistic user movements enables simulations of real data transmissions and the evaluation of many complex application scenarios in addition to the usual Monte Carlo approach.…”

Section: Current Researchmentioning

confidence: 99%

“…In order to serve as an interference signal in other simulations, the incident signal at the RX

\underline{w}[n]

can be stored enabling realistic interference simulations based on actual time‐discrete signals (Eckhardt, Herold, Friebel, et al., 2021).…”

Section: Phy‐layer Model and Simulator Implementationmentioning

confidence: 99%

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Modular Link Level Simulator for the Physical Layer of Beyond 5G Wireless Communication Systems

et al. 2022

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The low THz band is a promising candidate to enable data rates of up to 1 Tbit/s. To develop suitable communications systems, novel simulation approaches are needed that account for the specifics of the evolving technology. This article presents a modular link level simulator for the physical layer of beyond‐5G and 6G wireless communication systems in the THz range. The simulator, that is oriented toward the IEEE Std 802.15.3d‐2017 is contrasted to the state of the art of physical layer simulation tools. Its concept and basic building blocks are presented and the simulator is validated by channel simulations considering an AWGN channel model. Moreover, it is applied to a top‐of‐rack scenario in a wirelessly augmented data center. Different parameter sets are compared showing that a LOS condition and sufficient transmit power are a prerequisite in order to profit from the large bandwidth in the low THz range. The extensive data set of simulation results serves as input for future studies with higher layer simulation tools.

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