Investigation of Eavesdropping Opportunities in a Meeting Room Scenario for THz Communications

Herold, Christoph; Doeker, Tobias; Eckhardt, Johannes M.; Kürner, Thomas

doi:10.23919/eucap53622.2022.9769432

Cited by 9 publications

(9 citation statements)

References 8 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…Therefore, in contrast to [14], no lenses have been used to include the effect of side lobes in combination with scattering objects. The measurement campaign hence complements the results from [10] by investigating the effect of scatterers at different distances, complex shapes as well This work is licensed under a Creative Commons Attribution 4.0 License. For more information, see https://creativecommons.org/licenses/by/4.0/ as the influence of different materials, orientations, and temperatures.…”

mentioning

confidence: 90%

“…Work at lower frequencies, however, has shown that eavesdropping is still possible [9]. In addition, previous work showed a strong influence of reflections of common scenario features such as door frames or TV-screens [10], suggesting that the assumption of inherently secure communication links has to be carefully evaluated. Apart from structures and fixed features of a scenario, movable objects can have an impact on the propagation, too, and could be used or placed specifically for attacks by skilled, potential eavesdroppers.…”

mentioning

confidence: 99%

“…As the communication at THz frequencies has significantly matured during the recent years [5], [19], the measurement campaign that is presented in this article focuses on objects that can be found in typical communication scenarios such as the meeting room scenario from [10]. The measurement setup therefore focuses on a system-level view rather than fundamental measurements using dedicated reflectors or specifically designed shapes.…”

mentioning

confidence: 99%

See 2 more Smart Citations

Eavesdropping Measurements for Applications in Office Environments at Low THz Frequencies

Doeker

Herold

Eckhardt

et al. 2023

IEEE Trans. Microwave Theory Techn.

View full text Add to dashboard Cite

Low terahertz (THz) frequencies are promising candidates for future wireless communication systems. Due to high path losses at those frequencies, highly directive antennas can be used to compensate the path losses thus making eavesdropping challenging. However, previous work has shown that eavesdropping is still possible even if antennas with pencil beams are used. In this article, eavesdropping possibilities are evaluated with respect to common objects in office environments-a coffee cup, a thermos, and a laptop-by investigating the scattering properties of these objects. For the coffee cup and the thermos, angle-independent reflection losses are given. The laptop has the lowest reflection losses of approximately 5 dB if it is placed to reflect the signal in a specular way. Furthermore, the results are analyzed in terms of secrecy capacity and blockage, revealing good eavesdropping opportunities when the thermos is used. If the object is placed outside of the line-of-sight path, the blockage drops down to zero. However, especially for the thermos the secrecy capacity is still below 0.8 in this case. For the other objects, a direct eavesdropping where Eve is directly oriented toward Alice results in a lower secrecy capacity in most of the cases.

show abstract

mentioning

confidence: 90%

mentioning

confidence: 99%

mentioning

confidence: 99%

See 1 more Smart Citation

Eavesdropping Measurements for Applications in Office Environments at Low THz Frequencies

Doeker

Herold

Eckhardt

et al. 2023

IEEE Trans. Microwave Theory Techn.

View full text Add to dashboard Cite

show abstract

“…CBCS have been widely used for measurements in various environments such as outdoor environments [27], office environments [26], industrial environments [29], data centers [30], trains [31], automotive [32], and aircrafts [33]. Recently, CBCS have also been used for channel characterisation with regard to the determination of key performance indicator (KPI) for physical layer security such as secrecy capacity [34], [35].…”

Section: Johannes M Eckhardt Tobias Doeker Thomas Kürner Naveed a Abb...mentioning

confidence: 99%

“…Second, angular information of the angle of departure (AoD) and of the angle of arrival (AoA) useful for the evaluation of algorithms in device discovery [132]. Third, different types of map predictions [34]. As aforementioned, a prerequisite for ray-tracing is a 3D model of the environment, often called "digital twin," that contains information regarding the material parameters.…”

Section: B Ray-tracing: Sub-ghz To Low-thz Bandmentioning

confidence: 99%

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

et al. 2023

View full text Add to dashboard Cite

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.

show abstract

Wireless communications sensing and security above 100 GHz

2023

View full text Add to dashboard Cite

The field of sub-terahertz wireless communications is advancing rapidly, with major research efforts ramping up around the globe. To address some of the significant hurdles associated with exploiting these high frequencies for broadband and secure networking, systems will require extensive new capabilities for sensing their environment and manipulating their broadcasts. Based on these requirements, a vision for future wireless systems is beginning to emerge. In this Perspective article, we discuss some of the prominent challenges and possible solutions which are at the forefront of current research, and which will contribute to the architecture of wireless platforms beyond 5G.

show abstract

Investigation of Eavesdropping Opportunities in a Meeting Room Scenario for THz Communications

Cited by 9 publications

References 8 publications

Eavesdropping Measurements for Applications in Office Environments at Low THz Frequencies

Eavesdropping Measurements for Applications in Office Environments at Low THz Frequencies

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

Wireless communications sensing and security above 100 GHz

Contact Info

Product

Resources

About