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Localizing users and mapping the environment using radio signals is a key task in emerging applications such as low-latency communications and safety-critical navigation. Recently introduced multipath-based SLAM methods can jointly localize…

Signal Processing · Electrical Eng. & Systems 2026-03-31 Xuhong Li , Benjamin J. B. Deutschmann , Erik Leitinger , Florian Meyer

Multipath-based simultaneous localization and mapping (MP-SLAM) is a promising approach in wireless networks for obtaining position information of transmitters and receivers as well as information on the propagation environment. MP-SLAM…

Signal Processing · Electrical Eng. & Systems 2024-05-15 Erik Leitinger , Lukas Wielandner , Alexander Venus , Klaus Witrisal

In this paper, we consider a multiple-input multiple-output (MIMO) radar system for localizing a target based on its reflected echo signals. Specifically, we aim to estimate the random and unknown angle information of the target, by…

Information Theory · Computer Science 2023-05-16 Chan Xu , Shuowen Zhang

This paper derives a general expression for the Cram\'er-Rao bound (CRB) of wireless localization algorithms using range measurements subject to bias corruption. Specifically, the a priori knowledge about which range measurements are…

Information Theory · Computer Science 2011-11-10 Tao Wang

In this paper, we study a multiple-input multiple-output (MIMO) integrated sensing and communication (ISAC) system where one multi-antenna base station (BS) sends information to a user with multiple antennas in the downlink and…

Information Theory · Computer Science 2023-12-21 Chan Xu , Shuowen Zhang

We present a simultaneous localization and mapping (SLAM) algorithm that is based on radio signals and the association of specular multipath components (MPCs) with geometric features. Especially in indoor scenarios, robust localization from…

Information Theory · Computer Science 2019-08-30 Erik Leitinger , Florian Meyer , Franz Hlawatsch , Klaus Witrisal , Fredrik Tufvesson , Moe Z. Win

Radio-based simultaneous localization and mapping (SLAM) has the potential to provide precise user equipment (UE) localization and environmental sensing capabilities by exploiting radio signals. Most existing approaches leverage…

Signal Processing · Electrical Eng. & Systems 2026-03-04 Xi Zhang , Yu Ge , Ossi Kaltiokallio , Musa Furkan Keskin , Henk Wymeersch , Mikko Valkama

In this paper, we present a multipath-based simultaneous localization and mapping (SLAM) algorithm that continuously adapts mulitiple map feature (MF) models describing specularly reflected multipath components (MPCs) from flat surfaces and…

Signal Processing · Electrical Eng. & Systems 2024-03-18 Xuhong Li , Xuesong Cai , Erik Leitinger , Fredrik Tufvesson

In future wireless networks, the availability of information on the position of mobile agents and the propagation environment can enable new services and increase the throughput and robustness of communications. Multipath-based simultaneous…

Signal Processing · Electrical Eng. & Systems 2024-10-01 Mingchao Liang , Erik Leitinger , Florian Meyer

Sensing is an integral part of 6G and beyond systems, providing exceptional environmental perception along with communication. Radio frequency (RF)-based sensing often relies on simplified geometric assumptions (e.g., point scatterers or…

Signal Processing · Electrical Eng. & Systems 2026-05-19 Xuhong Li , Erik Leitinger , Fredrik Tufvesson , Florian Meyer

In this article, we address the timely topic of cellular bistatic simultaneous localization and mapping (SLAM) with specific focus on end-to-end processing solutions, from raw I/Q samples, via channel parameter estimation to user equipment…

Signal Processing · Electrical Eng. & Systems 2024-05-21 Elizaveta Rastorgueva-Foi , Ossi Kaltiokallio , Yu Ge , Matias Turunen , Jukka Talvitie , Bo Tan , Musa Furkan Keskin , Henk Wymeersch , Mikko Valkama

Challenging indoor and urban environments with severe multipath propagation and obstructed LoS (OLoS) degrade classical radio frequency (RF) positioning. Multipath-based simultaneous localization and mapping (MP-SLAM) is a promising remedy,…

Signal Processing · Electrical Eng. & Systems 2026-05-01 Benjamin J. B. Deutschmann , Klaus Witrisal , Erik Leitinger

Multipath-based simultaneous localization and mapping (MP-SLAM) is a well established approach to obtain position information of transmitters and receivers as well as information regarding the propagation environments in future multiple…

Signal Processing · Electrical Eng. & Systems 2024-04-25 Lukas Wielandner , Alexander Venus , Thomas Wilding , Klaus Witrisal , Erik Leitinger

Simultaneous localization and mapping (SLAM) plays a critical role in integrated sensing and communication (ISAC) systems for sixth-generation (6G) millimeter-wave (mmWave) networks, enabling environmental awareness and precise user…

Information Theory · Computer Science 2025-07-09 Hang Que , Jie Yang , Tao Du , Shuqiang Xia , Chao-Kai Wen , Shi Jin

This paper surveys the state-of-the-art in the nexus of SLAM and Wireless Communications, attributing the bidirectional impact of each with a focus on visual SLAM (V-SLAM) integration. We provide an overview of key concepts related to…

Radio frequency (RF) signal-based localization using modern cellular networks has emerged as a promising solution to accurately locate objects in challenging environments. One of the most promising solutions for situations involving…

Signal Processing · Electrical Eng. & Systems 2026-04-17 Junshi Chen , Xuhong Li , Russ Whiton , Erik Leitinger , Fredrik Tufvesson

Networks in 5G and beyond utilize millimeter wave (mmWave) radio signals, large bandwidths, and large antenna arrays, which bring opportunities in jointly localizing the user equipment and mapping the propagation environment, termed as…

Signal Processing · Electrical Eng. & Systems 2022-08-23 Yu Ge , Ossi Kaltiokallio , Hui Chen , Fan Jiang , Jukka Talvitie , Mikko Valkama , Lennart Svensson , Henk Wymeersch

Next-generation wireless networks will see the convergence of communication and sensing, also exploiting the availability of large bandwidths in the Terahertz (THz) spectrum and electrically large antenna arrays on handheld devices. In…

Signal Processing · Electrical Eng. & Systems 2022-12-26 Marina Lotti , Gianni Pasolini , Anna Guerra , Francesco Guidi , Raffaele D'Errico , Davide Dardari

In this paper, we study the transmit signal optimization in a multiple-input multiple-output (MIMO) radar system for sensing the angle information of multiple targets via their reflected echo signals. We consider a challenging and practical…

Information Theory · Computer Science 2024-09-16 Jiayi Yao , Shuowen Zhang

Simultaneous localization and mapping (SLAM) has been extensively researched in past years particularly with regard to range-based or visual-based sensors. Instead of deploying dedicated devices that use visual features, it is more…

Networking and Internet Architecture · Computer Science 2020-01-10 Ran Liu , Sumudu Hasala Marakkalage , Madhushanka Padmal , Thiruketheeswaran Shaganan , Chau Yuen , Yong Liang Guan , U-Xuan Tan
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