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Distributed multiple-input multiple-output (MIMO), also known as cell-free massive MIMO, emerges as a promising technology for sixth-generation (6G) systems to support uniform coverage and reliable communication. For the design and…

Signal Processing · Electrical Eng. & Systems 2025-04-17 Yingjie Xu , Michiel Sandra , Xuesong Cai , Sara Willhammar , Fredrik Tufvesson

Reconfigurable intelligent surfaces (RISs) have emerged as a promising technology to enhance the performance of sixth-generation (6G) and beyond communication systems. The passive nature of RISs and their large number of reflecting elements…

Information Theory · Computer Science 2024-06-12 Nipuni Ginige , Arthur Sousa de Sena , Nurul Huda Mahmood , Nandana Rajatheva , Matti Latva-aho

Reconfigurable intelligent surface (RIS) refers to a signal reflection surface containing a large number of low-cost passive reflecting elements. RIS can improve the performance of radar and communication systems by dynamically modulating…

Signal Processing · Electrical Eng. & Systems 2023-06-16 Da Li , Bo Tang , Xuyang Wang , Wenjun Wu , Lei Xue

Semi-definite relaxation (SDR) detector has been demonstrated to be successful in approaching maximum likelihood (ML) performance while the time complexity is only polynomial. We propose a new receiver jointly utilizing the forward error…

Information Theory · Computer Science 2018-06-13 Kun Wang , Zhi Ding

Current research on Multimodal Retrieval-Augmented Generation (MRAG) enables diverse multimodal inputs but remains limited to single-modality outputs, restricting expressive capacity and practical utility. In contrast, real-world…

Information Retrieval · Computer Science 2025-08-11 Zhiyou Xiao , Qinhan Yu , Binghui Li , Geng Chen , Chong Chen , Wentao Zhang

Cognitive Radar Networks, which were popularized by Simon Haykin in 2006, have been proposed to address limitations with legacy radar installations. These limitations include large physical size, power consumption, fixed operating…

Signal Processing · Electrical Eng. & Systems 2024-04-08 William W. Howard , Samuel R. Shebert , Anthony F. Martone , R. Michael Buehrer

Multi-rotor UAVs suffer from a restricted range and flight duration due to limited battery capacity. Autonomous landing on a 2D moving platform offers the possibility to replenish batteries and offload data, thus increasing the utility of…

Robotics · Computer Science 2024-05-17 Pascal Goldschmid , Aamir Ahmad

Radar sensors are gradually becoming a wide-spread equipment for road vehicles, playing a crucial role in autonomous driving and road safety. The broad adoption of radar sensors increases the chance of interference among sensors from…

Signal Processing · Electrical Eng. & Systems 2021-11-09 Nicolae-Cătălin Ristea , Andrei Anghel , Radu Tudor Ionescu

This paper introduces a learning-based visual planner for agile drone flight in cluttered environments. The proposed planner generates collision-free waypoints in milliseconds, enabling drones to perform agile maneuvers in complex…

Robotics · Computer Science 2025-11-21 Minwoo Kim , Geunsik Bae , Jinwoo Lee , Woojae Shin , Changseung Kim , Myong-Yol Choi , Heejung Shin , Hyondong Oh

Future communication networks must address the scarce spectrum to accommodate extensive growth of heterogeneous wireless devices. Wireless signal recognition is becoming increasingly more significant for spectrum monitoring, spectrum…

Signal Processing · Electrical Eng. & Systems 2022-06-22 Anu Jagannath , Jithin Jagannath

The classification of individual traffic participants is a complex task, especially for challenging scenarios with multiple road users or under bad weather conditions. Radar sensors provide an - with respect to well established camera…

Machine Learning · Computer Science 2019-05-28 Nicolas Scheiner , Nils Appenrodt , Jürgen Dickmann , Bernhard Sick

In this work, we propose a deep reinforcement learning (DRL) based reactive planner to solve large-scale Lidar-based autonomous robot exploration problems in 2D action space. Our DRL-based planner allows the agent to reactively plan its…

Robotics · Computer Science 2024-03-19 Yuhong Cao , Rui Zhao , Yizhuo Wang , Bairan Xiang , Guillaume Sartoretti

In this paper, we investigate a distributed multi-input multi-output and orthogonal frequency division multiplexing (MIMO-OFDM) dual-function radar-communication (DFRC) system, which enables simultaneous communication and sensing in…

Signal Processing · Electrical Eng. & Systems 2025-03-17 Chen Zhong , Xufeng Zhou , Lan Tang , Mengting Lou

Stacked intelligent metasurfaces (SIMs) represent a novel signal processing paradigm that enables over-the-air processing of electromagnetic waves at the speed of light. Their multi-layer architecture exhibits customizable computational…

Information Theory · Computer Science 2025-04-01 Hao Liu , Jiancheng An , George C. Alexandropoulos , Derrick Wing Kwan Ng , Chau Yuen , Lu Gan

In this paper, we propose a model-driven deep learning network for multiple-input multiple-output (MIMO) detection. The structure of the network is specially designed by unfolding the iterative algorithm. Some trainable parameters are…

Information Theory · Computer Science 2018-09-26 Hengtao He , Chao-Kai Wen , Shi Jin , Geoffrey Ye Li

In this paper, we present our spectrum sharing algorithm between a multi-input multi-output (MIMO) radar and Long Term Evolution (LTE) cellular system with multiple base stations (BS)s. We analyze the performance of MIMO radars in detecting…

Networking and Internet Architecture · Computer Science 2014-08-29 Haya Shajaiah , Ahmed Abdelhadi , Charles Clancy

In this paper, we consider the use of deep neural networks in the context of Multiple-Input-Multiple-Output (MIMO) detection. We give a brief introduction to deep learning and propose a modern neural network architecture suitable for this…

Machine Learning · Statistics 2017-06-06 Neev Samuel , Tzvi Diskin , Ami Wiesel

Passive and bistatic radar systems are often limited by strong clutter and direct-path interference that mask weak moving targets. Conventional cancellation methods such as the extensive cancellation algorithm require careful tuning and can…

Optimization and Control · Mathematics 2026-01-01 Yifan He , Griffin Kearney , Makan Fardad

Sparse and feature SLAM methods provide robust camera pose estimation. However, they often fail to capture the level of detail required for inspection and scene awareness tasks. Conversely, dense SLAM approaches generate richer scene…

Robotics · Computer Science 2025-05-16 Maaz Qureshi , Alexander Werner , Zhenan Liu , Amir Khajepour , George Shaker , William Melek

We consider multiple-input multiple-output (MIMO) radar systems with widely-spaced antennas. Such antenna configuration facilitates capturing the inherent diversity gain due to independent signal dispersion by the target scatterers. We…

Information Theory · Computer Science 2015-10-28 Ali Tajer , Guido H. Jajamovich , Xiaodong Wang , George V. Moustakides