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Designing a robust affinity model is the key issue in multiple target tracking (MTT). This paper proposes a novel affinity model by learning feature representation and distance metric jointly in a unified deep architecture. Specifically, we…

计算机视觉与模式识别 · 计算机科学 2018-02-12 Jun Xiang , Guoshuai Zhang , Jianhua Hou , Nong Sang , Rui Huang

Large-scale multiple-input multiple-output (MIMO) with high spectrum and energy efficiency is a very promising key technology for future 5G wireless communications. For large-scale MIMO systems, accurate channel state information (CSI)…

信息论 · 计算机科学 2015-11-30 Zhen Gao , Linglong Dai , Zhaocheng Wang

Contact tracing is a method used by public health organisations to try prevent the spread of infectious diseases in the community. Traditionally performed by manual contact tracers, more recently the use of apps have been considered…

机器学习 · 计算机科学 2022-03-10 Badrinath Singhal , Chris Vorster , Di Meng , Gargi Gupta , Laura Dunne , Mark Germaine

Inter-carrier interference (ICI) poses a significant challenge for OFDM joint radar-communications (JRC) systems in high-mobility scenarios. In this paper, we propose a novel ICI-aware sensing algorithm for MIMO-OFDM JRC systems to detect…

信号处理 · 电气工程与系统科学 2021-03-30 Musa Furkan Keskin , Henk Wymeersch , Visa Koivunen

The paper considers a scenario where a base station (BS), equipped with a large-scale antenna array, execute, using the same frequency range, both communication with mobile users and radar surveillance of the surrounding environment,…

信息论 · 计算机科学 2020-04-02 Stefano Buzzi , Carmen D'Andrea , Marco Lops

Massive machine-type communications (mMTC) is a crucial scenario to support booming Internet of Things (IoTs) applications. In mMTC, although a large number of devices are registered to an access point (AP), very few of them are active with…

信息论 · 计算机科学 2022-09-07 Jiaqi Liu , Gang Wu , Xiaoxu Zhang , Shu Fang , Shaoqian Li

This paper considers the joint channel estimation and device activity detection in the grant-free random access systems, where a large number of Internet-of-Things devices intend to communicate with a low-earth orbit satellite in a sporadic…

信号处理 · 电气工程与系统科学 2022-08-10 Boxiao Shen , Yongpeng Wu , Jianping An , Chengwen Xing , Lian Zhao , Wenjun Zhang

This paper proposes a grant-free massive access scheme based on the millimeter wave (mmWave) extra-large-scale multiple-input multiple-output (XL-MIMO) to support massive Internet-of-Things (IoT) devices with low latency, high data rate,…

信息论 · 计算机科学 2023-10-17 Li Qiao , Anwen Liao , Zhuoran Li , Hua Wang , Zhen Gao , Xiang Gao , Yu Su , Pei Xiao , Li You , Derrick Wing Kwan Ng

Tracking a target person from robot-egocentric views is crucial for developing autonomous robots that provide continuous personalized assistance or collaboration in Human-Robot Interaction (HRI) and Embodied AI. However, most existing…

机器人学 · 计算机科学 2025-07-10 Hanjing Ye , Yu Zhan , Weixi Situ , Guangcheng Chen , Jingwen Yu , Ziqi Zhao , Kuanqi Cai , Arash Ajoudani , Hong Zhang

To improve the poor performance of distributed operation and non-scalability of centralized operation in traditional cell-free massive MIMO, we propose a cell-free distributed collaborative (CFDC) massive multiple-input multiple-output…

信号处理 · 电气工程与系统科学 2023-03-30 Jiamin Li , Qijun Pan , Pengcheng Zhu , Dongming Wang , Xiaohu You

Massive machine-type communications (mMTC) are poised to provide ubiquitous connectivity for billions of Internet-of-Things (IoT) devices. However, the required low-latency massive access necessitates a paradigm shift in the design of…

信息论 · 计算机科学 2021-08-24 Yikun Mei , Zhen Gao , Yongpeng Wu , Wei Chen , Jun Zhang , Derrick Wing Kwan Ng , Marco Di Renzo

In this paper, we investigate a multiple-input multiple-output (MIMO) integrated sensing and communication (ISAC) system under typical block-fading channels. As a non-trivial extension to most existing works on ISAC, both the training and…

信息论 · 计算机科学 2024-06-07 Zhenyao He , Wei Xu , Hong Shen , Yonina C. Eldar , Xiaohu You

The doubly selective (DS) channel estimation in the large-scale multiple-input multiple-output (MIMO) systems is a challenging problem due to the large number of the channel coefficients to be estimated, which requires unaffordable and…

信号处理 · 电气工程与系统科学 2020-04-22 Bo Gong , Lin Gui , Qibo Qin , Xiang Ren , Wen Chen

In this paper, we propose a direct multiobject tracking (MOT) approach for MIMO-radar signals that operates on raw sensor data via variational message passing (VMP). Unlike classical track-before-detect (TBD) methods, which often rely on…

信号处理 · 电气工程与系统科学 2025-03-20 Anders Malthe Westerkam , Jakob Möderl , Erik Leitinger , Troels Pedersen

In this paper, we develop a beam tracking scheme for an orthogonal frequency division multiplexing (OFDM) Integrated Sensing and Communication (ISAC) system with a hybrid digital analog (HDA) architecture operating in the millimeter wave…

信号处理 · 电气工程与系统科学 2022-03-30 Fernando Pedraza , Saeid K. Dehkordi , Mari Kobayashi , Giuseppe Caire

We present the design and hardware implementation of a radar prototype that demonstrates the principle of a sub-Nyquist collocated multiple-input multiple-output (MIMO) radar. The setup allows sampling in both spatial and spectral domains…

Tracking multiple time-varying states based on heterogeneous observations is a key problem in many applications. Here, we develop a statistical model and algorithm for tracking an unknown number of targets based on the probabilistic fusion…

信号处理 · 电气工程与系统科学 2022-01-10 Domenico Gaglione , Paolo Braca , Giovanni Soldi , Florian Meyer , Franz Hlawatsch , Moe Z. Win

This paper develops a comprehensive target modeling, beamforming optimization, and parameter estimation framework for extended-target sensing in wideband MIMO-OFDM integrated sensing and communication systems. We propose a parametric…

信号处理 · 电气工程与系统科学 2026-03-17 Rang Liu , Ming Li , A. Lee Swindlehurst

In this work we consider a multiple-input multiple-output (MIMO) dual-function radar-communication (DFRC) system, which senses multiple spatial directions and serves multiple users. Upon resorting to an orthogonal frequency division…

信号处理 · 电气工程与系统科学 2022-03-09 Jeremy Johnston , Luca Venturino , Emanuele Grossi , Marco Lops , Xiaodong Wang

In recent years, anchor-free object detection models combined with matching algorithms are used to achieve real-time muti-object tracking and also ensure high tracking accuracy. However, there are still great challenges in multi-object…

计算机视觉与模式识别 · 计算机科学 2023-03-16 Huilan Luo , Zehua Zeng