2 citations · 3 across the 20 of their papers we have counts for
21 papers
Hybrid Monostatic and Bistatic Sensing for Target Localization in OFDM Systems under Phase Noise
Lucía Pallarés Rodríguez, Musa Furkan Keskin, Alireza Pourafzal +3
In hybrid monostatic-bistatic orthogonal frequency-division multiplexing (OFDM) sensing, each sensing node receives a superposition of monostatic and bistatic target returns, whose…
Radio Imaging and Resource Allocation in Frugal Multistatic D-MIMO ISAC Systems
Sauradeep Dey, Musa Furkan Keskin, Dario Tagliaferri +2
Emerging integrated sensing and communication (ISAC) systems based on distributed MIMO (D-MIMO) enable radio imaging by exploiting spatial diversity across multiple access points (…
Coordination of Ground-to-Space Reference Networks for High-Precision GNSS
Xue Xian Zheng, Xing Liu, José A. López-Salcedo +2
High-precision Global Navigation Satellite System (GNSS) services rely on accurate orbit, clock, atmospheric, and hardware-bias corrections generated from reference observations. T…
Differential LEO Navigation under Asynchronous Satellite Clocks: Architecture and Performance Bounds
Qamar Bader, Sharief Saleh, Henk Wymeersch +2
Low Earth Orbit (LEO) communication satellites have emerged as a promising source of signals of opportunity for resilient positioning, navigation, and timing (PNT) in GNSS-challeng…
From Pilot to Precoding Design: Blind Angular Spoofing For Location Privacy in MIMO Systems
Priyanka Maity, Lorenzo Italiano, Alireza Pourafzal +4
This paper studies location privacy in uplink MIMO systems, where a user equipment seeks to spoof the angular signature observed by a single base station performing localization. W…
Optimal Placement of Movable Antennas for Angle-of-Departure Estimation Under User Location Uncertainty
Lucía Pallarés-Rodríguez, Angelo Coluccia, Alessio Fascista +4
Movable antennas (MA) have gained significant attention in recent years to overcome the limitations of extremely large antenna arrays in terms of cost and power consumption. In thi…
LEO Constellations as a Decentralized GNSS Network: Optimizing PNT Corrections in Space
Xing Liu, Xue Xian Zheng, José A. López-Salcedo +2
With the rapid expansion of low Earth orbit (LEO) constellations, thousands of satellites are now in operation, many equipped with onboard GNSS receivers capable of continuous orbi…
Multi-band Carrier Phase Positioning toward 6G: Performance Bounds and Efficient Estimators
Ehsan Shourezari, Ossi Kaltiokallio, Mehmet C. Ilter +4
In addition to satellite systems, carrier phase positioning (CPP) is gaining attraction also in terrestrial mobile networks, particularly in 5G New Radio evolution toward 6G. One k…
POLO: Phase-Only Localization in Uplink Distributed MIMO Systems
Sauradeep Dey, Musa Furkan Keskin, Dario Tagliaferri +3
We propose a low-complexity localization framework for uplink distributed MIMO (D-MIMO) systems, targeting the challenge of minimizing the highly spiky maximum-likelihood (ML) cost…
Integrated Cellular and LEO-based Positioning and Synchronization under User Mobility
Yasaman Ettefagh, Sharief Saleh, Musa Furkan Keskin +3
This paper investigates the localization, synchronization, and speed estimation of a mobile user equipment (UE) leveraging integrated terrestrial and non-terrestrial networks (NTNs…
HoloTrace: a Location Privacy-Preserving Framework for mmWave MIMO-OFDM Systems
Lorenzo Italiano, Alireza Pourafzal, Hui Chen +4
High-resolution radio localization is becoming increasingly important for next-generation vehicular and mobile networks, enabling infrastructure-assisted positioning for connected…
Towards Hybrid Lunar PNT: Error Models, Lower Bounds and Algorithms
Robert Pöhlmann, Emanuel Staudinger, Gonzalo Seco-Granados
Accurate positioning, navigation and timing (PNT) are crucial for upcoming lunar surface missions. Lunar satellite navigation systems are being developed, but lack coverage during…
Distributed Integrated Sensing, Localization, and Communications over LEO Satellite Constellations
Yuchen Zhang, Francis Soualle, Musa Furkan Keskin +7
Low Earth orbit (LEO) satellite constellations are rapidly becoming essential enablers of next-generation wireless systems, offering global broadband access, high-precision localiz…
Joint Localization and Synchronization in Downlink Distributed MIMO
Sauradeep Dey, Musa Furkan Keskin, Dario Tagliaferri +2
We investigate joint localization and synchronization in the downlink of a distributed multiple-input-multiple-output (D-MIMO) system, aiming to estimate the position and phase off…
Integrated 6G TN and NTN Localization: Challenges, Opportunities, and Advancements
Sharief Saleh, Pinjun Zheng, Xing Liu +8
The rapid evolution of cellular networks has introduced groundbreaking technologies, including large and distributed antenna arrays and reconfigurable intelligent surfaces in terre…
6G RIS-aided Single-LEO Localization with Slow and Fast Doppler Effects
Sharief Saleh, Musa Furkan Keskin, Basuki Priyanto +5
6G networks aim to enable applications like autonomous driving by providing complementary localization services through key technologies such as non-terrestrial networks (NTNs) wit…
Location and Map-Assisted Wideband Phase and Time Calibration Between Distributed Antennas
Yibo Wu, Musa Furkan Keskin, Ulf Gustavsson +3
Distributed massive multiple-input multiple-output networks utilize a large number of distributed access points (APs) to serve multiple user equipments (UEs), offering significant…
Joint Localization, Synchronization and Mapping via Phase-Coherent Distributed Arrays
Alessio Fascista, Benjamin J. B. Deutschmann, Musa Furkan Keskin +6
Extremely large-scale antenna array (ELAA) systems emerge as a promising technology in beyond 5G and 6G wireless networks to support the deployment of distributed architectures. Th…
Frugal RIS-aided 3D Localization with CFO under LoS and NLoS Conditions
Yasaman Ettefagh, Musa Furkan Keskin, Kamran Keykhosravi +2
In this paper, we investigate 3-D localization and frequency synchronization with multiple reconfigurable intelligent surfaces (RISs) in the presence of carrier frequency offset (C…
Improving 3D Cellular Positioning Integrity with Bayesian RAIM
Liqin Ding, Gonzalo Seco-Granados, Hyowon Kim +4
Ensuring positioning integrity amid faulty measurements is crucial for safety-critical applications, making receiver autonomous integrity monitoring (RAIM) indispensable. This pape…
LEO Satellite and RIS: Two Keys to Seamless Indoor and Outdoor Localization
Pinjun Zheng, Xing Liu, Yuchen Zhang +3
The contemporary landscape of wireless technology underscores the critical role of precise localization services. Traditional global navigation satellite systems (GNSS)-based solut…