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Event cameras are bio-inspired dynamic vision sensors that respond to changes in image intensity with a high temporal resolution, high dynamic range and low latency. These sensor characteristics are ideally suited to enable visual target…

机器人学 · 计算机科学 2022-08-04 Ziwei Wang , Yonhon Ng , Jack Henderson , Robert Mahony

Covert communications enable a transmitter to send information reliably in the presence of an adversary, who looks to detect whether the transmission took place or not. We consider covert communications over quasi-static block fading…

信息论 · 计算机科学 2020-09-29 Khurram Shahzad , Xiangyun Zhou

Human Activity Recognition (HAR) has recently received remarkable attention in numerous applications such as assisted living and remote monitoring. Existing solutions based on sensors and vision technologies have obtained achievements but…

计算机视觉与模式识别 · 计算机科学 2022-05-25 Yanling Hao , Zhiyuan Shi , Yuanwei Liu

Massive multiple-input multiple-output (MIMO) stands as a key technology for advancing performance metrics such as data rate, reliability, and spectrum efficiency in the fifth generation (5G) and beyond of wireless networks. However, its…

信号处理 · 电气工程与系统科学 2025-05-19 Sajjad Nassirpour , Toan-Van Nguyen , Duy H. N. Nguyen

Deep generative models offer a powerful alternative to conventional channel estimation by learning the complex prior distribution of wireless channels. Capitalizing on this potential, this paper proposes a novel channel estimation algorithm…

信息论 · 计算机科学 2025-10-27 Xiaotian Fan , Xingyu Zhou , Le Liang , Shi Jin

The next generations of vehicles are expected to be equipped with sophisticated sensors to support advanced automotive services. The large volume of data generated by such applications will likely put a strain on the vehicular communication…

网络与互联网体系结构 · 计算机科学 2019-07-25 Marco Giordani , Andrea Zanella , Takamasa Higuchi , Onur Altintas , Michele Zorzi

Objects in an environment affect electromagnetic waves. While this effect varies across frequencies, there exists a correlation between them, and a model with enough capacity can capture this correlation between the measurements in…

计算机视觉与模式识别 · 计算机科学 2020-01-17 Mohammad Hadi Kefayati , Vahid Pourahmadi , Hassan Aghaeinia

The problem of distributed dynamic state estimation in wireless sensor networks is studied. Two important properties of local estimates, namely, the consistency and confidence, are emphasized. On one hand, the consistency, which means that…

信息论 · 计算机科学 2016-11-15 Shaocheng Wang , Wei Ren

Doubly-selective channel estimation represents a key element in ensuring communication reliability in wireless systems. Due to the impact of multi-path propagation and Doppler interference in dynamic environments, doubly-selective channel…

信息论 · 计算机科学 2023-05-02 Abdul Karim Gizzini , Marwa Chafii

Autonomous mobile robots like self-flying drones and industrial robots heavily depend on depth images to perform tasks such as 3D reconstruction and visual SLAM. However, the presence of inaccuracies in these depth images can greatly hinder…

计算机视觉与模式识别 · 计算机科学 2024-07-23 Yashashwee Chakrabarty , Smruti Ranjan Sarangi

Visible light communication (VLC) has the potential to supplement the growing demand for wireless connectivity. In order to realise the full potential of VLC, channel models are required Discrete channel models based on semi-hidden Markov…

信号处理 · 电气工程与系统科学 2019-02-20 Daniel G. Holmes , Ling Cheng , Mulundumina Shimaponda-Nawa , Ayokunle D. Familua , Adnan M. Abu-Mahfouz

In response to the rapid growth of global videomtraffic and the limitations of traditional wireless transmission systems, we propose a novel dual-stage vector quantization framework, VQ-DeepVSC, tailored to enhance video transmission over…

网络与互联网体系结构 · 计算机科学 2024-09-06 Yongyi Miao , Zhongdang Li , Yang Wang , Die Hu , Jun Yan , Youfang Wang

The paradigm shift from environment-unaware communication to intelligent environment-aware communication is expected to facilitate the acquisition of channel state information for future wireless communications. Channel Fingerprint (CF), as…

网络与互联网体系结构 · 计算机科学 2026-05-27 Zhenzhou Jin , Li You , Xiang-Gen Xia , Xiqi Gao

Deep joint source-channel coding (DeepJSCC) has shown promise in wireless transmission of text, speech, and images within the realm of semantic communication. However, wireless video transmission presents greater challenges due to the…

图像与视频处理 · 电气工程与系统科学 2024-11-18 Xinyi Zhou , Danlan Huang , Zhixin Qi , Liang Zhang , Ting Jiang

Visual perception is an effective way to obtain the spatial characteristics of wireless channels and to reduce the overhead for communications system. A critical problem for the visual assistance is that the communications system needs to…

信号处理 · 电气工程与系统科学 2024-12-17 Weihua Xu , Feifei Gao , Yong Zhang , Chengkang Pan , Guangyi Liu

Depth estimation in videos is essential for visual perception in real-world applications. However, existing methods either rely on simple frame-by-frame monocular models, leading to temporal inconsistencies and inaccuracies, or use…

计算机视觉与模式识别 · 计算机科学 2025-12-12 Luigi Piccinelli , Thiemo Wandel , Christos Sakaridis , Wim Abbeloos , Luc Van Gool

Real-time transmission of high-resolution video signals in an uncompressed and unencrypted format requires an ultra-reliable and low-latency communications (URLLC) medium with high bandwidth to maintain the quality of experience (QoE) for…

信号处理 · 电气工程与系统科学 2025-08-01 Hossein Kazemi , Isaac N. O. Osahon , Tiankuo Jiao , David Butler , Nikolay Ledentsov , Ilya Titkov , Nikolay Ledentsov , Harald Haas

Fluid antenna systems (FAS) offer enhanced spatial diversity for next-generation wireless systems. However, acquiring accurate channel state information (CSI) remains challenging due to the large number of reconfigurable ports and the…

信息论 · 计算机科学 2025-05-09 Erqiang Tang , Wei Guo , Hengtao He , Shenghui Song , Jun Zhang , Khaled B. Letaief

Accurate multiple-input multiple-output (MIMO) channel estimation is critical for next-generation wireless systems, enabling enhanced communication and sensing performance. Traditional model-based channel estimation methods suffer, however,…

信号处理 · 电气工程与系统科学 2026-02-02 Seyed Alireza Javid , Nuria González-Prelcic

End-to-end visual communication systems typically optimize a trade-off between channel bandwidth costs and signal-level distortion metrics. However, under challenging physical conditions, this traditional coding and transmission paradigm…

信号处理 · 电气工程与系统科学 2025-01-28 Sixian Wang , Jincheng Dai , Kailin Tan , Xiaoqi Qin , Kai Niu , Ping Zhang