789 citations · 4.2k across the 175 of their papers we have counts for
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Integrated Communications and Localization for Massive MIMO LEO Satellite Systems
Li You, Xiaoyu Qiang, Yongxiang Zhu +6
Integrated communications and localization (ICAL) will play an important part in future sixth generation (6G) networks for the realization of Internet of Everything (IoE) to suppor…
Joint 3D User and 6D Hybrid Reconfigurable Intelligent Surface Localization
Reza Ghazalian, George C. Alexandropoulos, Gonzalo Seco-Granados +2
The latest assessments of the emerging technologies for reconfigurable intelligent surfaces (RISs) have indicated the concept's significant potential for localization and sensing,…
On the Statistical Relation of Ultra-Reliable Wireless and Location Estimation
Tobias Kallehauge, Martin Voigt Vejling, Pablo Ramìrez-Espinosa +3
Location information is often used as a proxy to guarantee the performance of a wireless communication link. However, localization errors can result in a significant mismatch with…
RIS-Enabled Smart Wireless Environments: Deployment Scenarios, Network Architecture, Bandwidth and Area of Influence
George C. Alexandropoulos, Dinh-Thuy Phan-Huy, Kostantinos D. Katsanos +19
Reconfigurable Intelligent Surfaces (RISs) constitute the key enabler for programmable electromagnetic propagation environments, and are lately being considered as a candidate phys…
Rateless Autoencoder Codes: Trading off Decoding Delay and Reliability
Vukan Ninkovic, Dejan Vukobratovic, Christian Häger +2
Most of today's communication systems are designed to target reliable message recovery after receiving the entire encoded message (codeword). However, in many practical scenarios,…
End-to-End Learning for VCSEL-based Optical Interconnects: State-of-the-Art, Challenges, and Opportunities
Muralikrishnan Srinivasan, Jinxiang Song, Alexander Grabowski +8
Optical interconnects (OIs) based on vertical-cavity surface-emitting lasers (VCSELs) are the main workhorse within data centers, supercomputers, and even vehicles, providing low-c…
Multistatic Sensing of Passive Targets Using 6G Cellular Infrastructure
Vijaya Yajnanarayana, Henk Wymeersch
Sensing using cellular infrastructure may be one of the defining feature of sixth generation (6G) wireless systems. Wideband 6G communication channels operating at higher frequency…
Smart Wireless Environments Enabled by RISs: Deployment Scenarios and Two Key Challenges
George C. Alexandropoulos, Maurizio Crozzoli, Dinh-Thuy Phan-Huy +9
Reconfigurable Intelligent Surfaces (RISs) constitute the enabler for programmable propagation of electromagnetic signals, and are lately being considered as a candidate physical-l…
Benchmarking and Interpreting End-to-end Learning of MIMO and Multi-User Communication
Jinxiang Song, Christian Häger, Jochen Schröder +3
End-to-end autoencoder (AE) learning has the potential of exceeding the performance of human-engineered transceivers and encoding schemes, without a priori knowledge of communicati…
Localization via Multiple Reconfigurable Intelligent Surfaces Equipped with Single Receive RF Chains
George C. Alexandropoulos, Ioanna Vinieratou, Henk Wymeersch
The extra degrees of freedom resulting from the consideration of Reconfigurable Intelligent Surfaces (RISs) for smart signal propagation can be exploited for high accuracy localiza…
A Primer on the Statistical Relation between Wireless Ultra-Reliability and Location Estimation
Tobias Kallehauge, Pablo Ramírez-Espinosa, Kimmo Kansanen +2
Location information is often used as a proxy to infer the performance of a wireless communication link. Using a very simple model, this letter unveils a basic statistical relation…
Autoencoder-Based Unequal Error Protection Codes
Vukan Ninkovic, Dejan Vukobratovic, Christian Häger +2
We present a novel autoencoder-based approach for designing codes that provide unequal error protection (UEP) capabilities. The proposed design is based on a generalization of an a…
Wireless Environment as a Service Enabled by Reconfigurable Intelligent Surfaces: The RISE-6G Perspective
Emilio Calvanese Strinati, George C. Alexandropoulos, Vincenzo Sciancalepore +15
The design of 6th Generation (6G) wireless networks points towards flexible connect-and-compute technologies capable to support innovative services and use cases. Targeting the 203…
Position Information from Single-Bounce Reflections
Anastasios Kakkavas, Mario H. Castañeda García, Gonzalo Seco-Granados +3
In the context of positioning a target with a single-anchor, this contribution focuses on the Fisher information about the position, orientation and clock offset of the target prov…
Power Allocation and Parameter Estimation for Multipath-based 5G Positioning
Anastasios Kakkavas, Henk Wymeersch, Gonzalo Seco-Granados +3
We consider a single-anchor multiple-input multiple-output (MIMO) orthogonal frequency-division multiplexing (OFDM) system with imperfectly synchronized transmitter (Tx) and receiv…
Performance Analysis for Autonomous Vehicle 5G-Assisted Positioning in GNSS-Challenged Environments
Zohair Abu-Shaban, Gonzalo Seco-Granados, Craig R. Benson +1
Standalone Global Navigation Satellite Systems (GNSS) are known to provide positioning accuracy of a few meters in open sky conditions. This accuracy can drop significantly when th…
5G Positioning and Mapping with Diffuse Multipath
Fuxi Wen, Josef Kulmer, Klaus Witrisal +1
5G mmWave communication is useful for positioning due to the geometric connection between the propagation channel and the propagation environment. Channel estimation methods can ex…
RadChat: Spectrum Sharing for Automotive Radar Interference Mitigation
Canan Aydogdu, Musa Furkan Keskin, Nil Garcia +2
In the automotive sector, both radars and wireless communication are susceptible to interference. However, combining the radar and communication systems, i.e., radio frequency (RF)…
5G Downlink Multi-Beam Signal Design for LOS Positioning
Anastasios Kakkavas, Gonzalo Seco-Granados, Henk Wymeersch +3
In this work, we study optimal transmit strategies for minimizing the positioning error bound in a line-of-sight scenario, under different levels of prior knowledge of the channel…
Tracking Position and Orientation through Millimeter Wave Lens MIMO in 5G Systems
Arash Shahmansoori, Bernard Uguen, Giuseppe Destino +2
Millimeter wave signals and large antenna arrays are considered enabling technologies for future 5G networks. Despite their benefits for achieving high data rate communications, th…
Proactive Resource Allocation with Predictable Channel Statistics
L. Srikar Muppirisetty, John Tadrous, Atilla Eryilmaz +1
The behavior of users in relatively predictable, both in terms of the data they request and the wireless channels they observe. In this paper, we consider the statistics of such pr…
Single-Anchor Two-Way Localization Bounds for 5G mmWave Systems
Zohair Abu-Shaban, Henk Wymeersch, Thushara Abhayapala +1
Recently, millimeter-wave (mmWave) 5G localization has been shown to be to provide centimeter-level accuracy, lending itself to many location-aware applications, e.g., connected au…
Achievable Information Rates for Nonlinear Fiber Communication via End-to-end Autoencoder Learning
Shen Li, Christian Häger, Nil Garcia +1
Machine learning is used to compute achievable information rates (AIRs) for a simplified fiber channel. The approach jointly optimizes the input distribution (constellation shaping…
Joint Localization and Mapping through Millimeter Wave MIMO in 5G Systems - Extended Version
Rico Mendrzik, Henk Wymeersch, Gerhard Bauch
Millimeter wave signals with multiple transmit and receive antennas are considered as enabling technology for enhanced mobile broadband services in 5G systems. While this combinati…