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Active wavefront control in high-power laser illumination systems is important for technologies such as additive manufacturing, free-space laser communication, and power transmission. Conventional spatial light modulators (SLMs) and…

Droplet microlasers, as promising tools for biophotonics and biomedical sciences, have witnessed rapid advances due to their flexible reconfigurability, high sensitivity to stimuli, and label-free biosensing ability. However, designing…

The emerging intelligent reflecting surface (IRS) technology introduces the potential of controlled light propagation in visible light communication (VLC) systems. This concept opens the door for new applications in which the channel itself…

信息论 · 计算机科学 2021-11-09 Hanaa Abumarshoud , Bassant Selim , Mallik Tatipamula , Harald Haas

The sparsity of millimeter wave (mmWave) channels in the angular and temporal domains is beneficial to channel estimation, while the associated channel parameters can be utilized for localization. However, line-of-sight (LoS) blockage poses…

信号处理 · 电气工程与系统科学 2024-02-27 Kunlun Li , Jiguang He , Mohammed El-Hajjar , Lie-Liang Yang

Visible light communication (VLC) is an emerging technology and considered as an alternative to overcome some of the disadvantages of radio frequency communication technology in an indoor environment. However, the line of sight nature of…

系统与控制 · 电气工程与系统科学 2023-06-27 M. A. N. Perera , N. G. K. R. Wijewardhana , A. A. D. T Nissanka , S. A. H. A. Suraweera , G. M. R. I. Godaliyadda

Existing Multimodal Large Language Models (MLLMs) suffer from increased inference costs due to the additional vision tokens introduced by image inputs. In this work, we propose Visual Consistency Learning (ViCO), a novel training algorithm…

计算机视觉与模式识别 · 计算机科学 2025-12-16 Long Cui , Weiyun Wang , Jie Shao , Zichen Wen , Gen Luo , Linfeng Zhang , Yanting Zhang , Yu Qiao , Wenhai Wang

We consider an interactive multiview video streaming (IMVS) system where clients select their preferred viewpoint in a given navigation window. To provide high quality IMVS, many high quality views should be transmitted to the clients.…

多媒体 · 计算机科学 2015-06-26 Ana De Abreu , Laura Toni , Nikolaos Thomos , Thomas Maugey , Fernando Pereira , Pascal Frossard

Photovoltaic (PV) modules have been employed in visible light communication (VLC) for simultaneous energy harvesting and data reception. A PV-based receiver features easy optical alignment and self-powered operation. It is commonly assumed…

信号处理 · 电气工程与系统科学 2021-11-22 Shuyan Chen , Liqiong Liu , Lian-Kuan Chen

Much stringent reliability and processing latency requirements in ultra-reliable-low-latency-communication (URLLC) traffic make the design of linear massive multiple-input-multiple-output (M-MIMO) receivers becomes very challenging.…

信息论 · 计算机科学 2021-10-28 Alva Kosasih , Wibowo Hardjawana , Branka Vucetic , Chao-Kai Wen

Reliable millimeter-wave (mmWave) communication in non-line-of-sight (NLoS) conditions remains a major challenge for both military and civilian operations, especially in urban or infrastructure-limited environments. This paper presents a…

计算机视觉与模式识别 · 计算机科学 2025-09-05 Josue Marroquin , Nan Inzali , Miles Dillon Lantz , Campbell Freeman , Amod Ashtekar , \\Ajinkya Umesh Mulik , Mohammed E Eltayeb

Multiple-input multiple-output (MIMO) systems have been widely acclaimed in order to provide high data rates. Recently Lattice Reduction (LR) aided detectors have been proposed to achieve near Maximum Likelihood (ML) performance with low…

信息论 · 计算机科学 2016-02-22 Mehnaz Rahman , Gwan S. Choi

This paper presents a novel massive multiple-input multiple-output (MIMO) transmission in beam domain for optical wireless communications. The optical base station equipped with massive optical transmitters communicates with a number of…

信号处理 · 电气工程与系统科学 2018-11-27 Chen Sun , Xiqi Gao , Jiaheng Wang , Zhi Ding , Xiang-Gen Xia

Visible Light Communications (VLC) has been studied thoroughly in recent years as an alternative or complementary technology to radio frequency communications. The reliability of VLC channels highly depends on the availability and alignment…

新兴技术 · 计算机科学 2017-10-27 Yusuf Said Eroglu , Yavuz Yapici , Ismail Guvenc

Vision-and-language navigation (VLN) is a challenging task that requires an agent to navigate in real-world environments by understanding natural language instructions and visual information received in real-time. Prior works have…

机器人学 · 计算机科学 2021-01-20 Ting Wang , Zongkai Wu , Donglin Wang

In this paper, we investigate the problem of the joint transceiver and offset design (JTOD) for point-to-point multiple-input-multiple-output (MIMO) and multiple user multiple-input-single-output (MU-MISO) visible light communication (VLC)…

信息论 · 计算机科学 2016-12-22 Qian Gao , Chen Gong , Zhengyuan Xu

In this letter, we study a discrete optimization problem, namely, the maximization of channel capacity in fluid multiple-input multiple-output (fluid-MIMO) systems through the selection of antenna ports/positions at both the transmitter and…

信号处理 · 电气工程与系统科学 2024-09-11 Christos N. Efrem , Ioannis Krikidis

Millimeter-wave (mmWave) multiple-input multiple-out (MIMO) systems relying on lens antenna arrays are capable of achieving a high antenna-gain at a considerably reduced number of radio frequency (RF) chains via beam selection. However, the…

信息论 · 计算机科学 2020-04-20 Wenqian Shen , Xiangyuan Bu , Xinyu Gao , Chengwen Xing , Lajos Hanzo

A liquid crystal (LC) lens array based on double-layer composite electrodes, characterized by a large aperture, short focal length, and low operating voltage is demonstrated. The lens array consists of an LC layer, a top common electrode, a…

光学 · 物理学 2025-09-05 Rui Ding , Li-Lan Tian , Yi Zheng , Yu-Meng Zeng , Fan Zou , Yue Niu , Rong-Fu Liu , Ji-Wei Zhou

Indoor visible light communications (VLC) require simultaneous illumination and communication. Hence, uniformity in the illumination is a key consideration for user comfort and data transfer in VLC systems. Several run-length limited codes…

信号处理 · 电气工程与系统科学 2019-01-28 T. Uday , Abhinav Kumar , L. Natarajan

Visible Light Communication (VLC) is based on the dual use of the illumination infrastructure for wireless data communication. The major interest on this communication technology lies on its specific features to be a secure, cost-effective…

网络与互联网体系结构 · 计算机科学 2019-03-29 Antonio Costanzo , Valeria Loscri , Mauro Biagi