no code implementations • 26 Jan 2024 • Chu Li, Stefan Roth, Aydin Sezgin
Simulations verify the correctness of the closed-form expressions and demonstrate that we can effectively improve the secrecy rate, especially when the eavesdropper is close to the RIS or the legitimate user.
no code implementations • 21 Jun 2023 • Aya Mostafa Ahmed, Udaya S. K. P. Miriya Thanthrige, Aydin Sezgin, Fulvio Gini
In this paper, we address the problem of direction of arrival (DOA) estimation for multiple targets in the presence of sensor failures in a sparse array.
no code implementations • 18 Nov 2022 • Bilal Ahmad, Kevin Weinberger, Aydin Sezgin, Bilal Zafar, Martin Haardt
To enable the full potential of RISs, we propose to use tensor-decomposition-based CE, which facilitates smart configuration of the RIS by providing the required channel components.
no code implementations • 31 Oct 2022 • Kevin Weinberger, Robert-Jeron Reifert, Aydin Sezgin, Ertugrul Basar
More and more applications that require high reliability and fault tolerance are realized with wireless network architectures and thus ultimately rely on the wireless channels, which can be subject to impairments and blockages.
no code implementations • 10 Mar 2022 • Simon Tewes, Markus Heinrichs, Rainer Kronberger, Aydin Sezgin
By utilizing an IRS prototype system, this paper aims to enhance self-interference (SI) cancellation for breath tracking with commodity WiFi devices.
no code implementations • 6 Jul 2021 • Chu Li, Aydin Sezgin, Zhu Han
In this work, we study the impact of the multiplicative phase noise in an IRS-assisted system.
no code implementations • 7 Jun 2021 • Udaya S. K. P. Miriya Thanthrige, Peter Jung, Aydin Sezgin
In many scenarios, the number of defects that we are interested in is limited and the signaling response of the layered structure can be modeled as a low-rank structure.
no code implementations • 26 May 2021 • Simon Tewes, Markus Heinrichs, Paul Staat, Rainer Kronberger, Aydin Sezgin
Reconfigurable intelligent surfaces (RIS) are a key enabler of various new applications in 6G smart radio environments.
no code implementations • 12 May 2021 • Kevin Weinberger, Alaa Alameer Ahmad, Aydin Sezgin, Alessio Zappone
Interestingly, with an increasing fronthaul capacity, the gain of the dynamic user clustering decreases, while the gain of the dynamic RS method increases.
no code implementations • 15 Jan 2021 • Chu Li, Jeremy Brauer, Aydin Sezgin, Christian Zenger
Recently channel state information (CSI) measurements from commercial multi input multi output (MIMO) WiFi systems have been ubiquitously used for different wireless sensing applications.
no code implementations • 15 Jan 2021 • Chu Li, Aydin Sezgin
Recently, channel state information (CSI) at the physical-layer has been utilized to detect spoofing attacks in wireless communications.
no code implementations • 14 Dec 2020 • Stefan Roth, Stefano Tomasin, Marco Maso, Aydin Sezgin
We analyze the attack and assess the obtained localization accuracy against various parameters.
Information Theory Cryptography and Security Signal Processing Information Theory
no code implementations • 31 Oct 2020 • Udaya S. K. P. Miriya Thanthrige, Ali Kariminezhad, Peter Jung, Aydin Sezgin
Here, defects are inside a layered material structure, therefore, due to reflections from the surface of the layered material structure the defect detection is challenging.
no code implementations • 27 Jul 2020 • Aya Mostafa Ahmed, Udaya Sampath K. P. Miriya Thanthrige, Aly El Gamal, Aydin Sezgin
We further analyze the best choice for the training SNR as a function of the test SNR, and observe dramatic changes in the behavior of this function for different angle ranges.
no code implementations • 15 Jul 2020 • Kashmira Shinde, Jong-Seok Lee, Matthias Humt, Aydin Sezgin, Rudolph Triebel
This paper presents an end-to-end multi-modal learning approach for monocular Visual-Inertial Odometry (VIO), which is specifically designed to exploit sensor complementarity in the light of sensor degradation scenarios.
no code implementations • 16 Jun 2020 • Udaya S. K. P. Miriya Thanthrige, Jan Barowski, Ilona Rolfes, Daniel Erni, Thomas Kaiser, Aydin Sezgin
Since the number of reflections coming from the MUT is limited, we propose sparse signal processing (SSP) to decompose the reflected signal.
no code implementations • 10 May 2020 • Aya Mostafa Ahmed, Alaa Alameer Ahmad, Stefano Fortunati, Aydin Sezgin, Maria S. Greco, Fulvio Gini
We propose a reinforcement learning (RL) based algorithm for cognitive multi-target detection in the presence of unknown disturbance statistics.
no code implementations • 6 May 2020 • Aya Mostafa Ahmed, Omar Eissa, Aydin Sezgin
In this paper a robust algorithm for DOA estimation of coherent sources in presence of antenna array imperfections is presented.
no code implementations • 21 Apr 2020 • Jaber Kakar, Aydin Sezgin
In this paper, we consider the over-the-air computation of sums.
no code implementations • 30 Oct 2019 • Jaber Kakar, Anton Khristoforov, Seyedhamed Ebadifar, Aydin Sezgin
To find a good balance between these two metrics, we propose two schemes which we term USCSA and GSCSA that are based on secure cross subspace alignment (SCSA).
no code implementations • 6 Sep 2019 • Udaya Sampath K. P. Miriya Thanthrige, Aya Mostafa Ahmed, Aydin Sezgin
In this paper, we introduce a novel algorithm that can dramatically reduce the number of antenna elements needed to accurately predict the direction of arrival (DOA) for multiple input multiple output (MIMO) radar.