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Mutual relative localization and identification is an important feature for the stabilization and navigation of multi-Unmanned Aerial Vehicle (UAV) systems. Camera-based communications technology, also referred to as Optical Camera…

Signal Processing · Electrical Eng. & Systems 2025-10-15 Daniel Bonilla Licea , Viktor Walter , Mounir Ghogho , Martin Saska

The sensitivity of the optical wireless communication (OWC) can be effectively improved by employing the highly sensitive single-photon avalanche diode (SPAD) arrays. However, the nonlinear distortion introduced by the dead time strongly…

Information Theory · Computer Science 2022-10-26 Shenjie Huang , Cheng Chen , Mohammad Dehghani Soltani , Robert Henderson , Harald Haas , Majid Safari

Recently, the spatial modulation (SM) technique has been proposed for visible light communication (VLC). This paper investigates the average symbol error rate (SER) for the VLC using adaptive spatial modulation (ASM). In the system, the…

Information Theory · Computer Science 2018-07-27 Jin-Yuan Wang , Jian-Xia Zhu , Sheng-Hong Lin , Jun-Bo Wang

This paper investigates the problem of hybrid precoder and combiner design for multiple-input multiple-output (MIMO) orthogonal frequency division multiplexing (OFDM) systems operating in millimeter-wave (mmWave) bands. We propose a novel…

Information Theory · Computer Science 2017-04-27 Wenfei Liu , Ming Li , Xiaowen Tian , Zihuan Wang , Qian Liu

Large vision-language models (LVLMs) remain vulnerable to hallucination, often generating content misaligned with visual inputs. Although recent training-based approaches aim to mitigate hallucination, they typically rely on predefined or…

Computer Vision and Pattern Recognition · Computer Science 2025-09-30 Shujun Liu , Siyuan Wang , Zejun Li , Jianxiang Wang , Cheng Zeng , Zhongyu Wei

Visible light communication (VLC) has wide unlicensed bandwidth, enables communication in radio frequency (RF) sensitive environments, realizes energy-efficient data transmission, and has the potential to boost the capacity of wireless…

Networking and Internet Architecture · Computer Science 2015-03-11 Sihua Shao , Abdallah Khreishah , Moussa Ayyash , Michael B. Rahaim , Hany Elgala , Volker Jungnickel , Dominic Schulz , Thomas D. C. Little

Multi-Cell (MC) systems are present in mobile network operations from the first generation to the fifth generation of wireless networks, and considers the signals of all users to a base station (BS) centered in a cell. Cell-Free (CF)…

Information Theory · Computer Science 2022-10-04 E. F. de Almeida , R. C. de Lamare

Sharing and joint processing of camera feeds and sensor measurements, known as Cooperative Perception (CP), has emerged as a new technique to achieve higher perception qualities. CP can enhance the safety of Autonomous Vehicles (AVs) where…

Computer Vision and Pattern Recognition · Computer Science 2024-04-15 Ahmad Sarlak , Hazim Alzorgan , Sayed Pedram Haeri Boroujeni , Abolfazl Razi , Rahul Amin

This paper proposes a coding framework for capacity-region-achieving sparse regression (SR) codes over MIMO multiple-access channels (MIMO-MAC), where a single SR code is used for each user at the transmitter. With random semi-unitary…

Information Theory · Computer Science 2026-04-14 Hao Yan , Lei Liu , Yuhao Liu , Burak Çakmak , Giuseppe Caire

This paper investigates the design of precoders for single-user multiple-input multiple-output (MIMO) channels, and in particular for finite-alphabet signals. Based on an asymptotic expression for the mutual information of channels…

Information Theory · Computer Science 2017-04-18 Yongpeng Wu , Chao-Kai Wen , Derrick Wing Kwan Ng , Robert Schober , Angel Lozano

The design of precoding plays a crucial role in achieving a high downlink sum-rate in multiuser multiple-input multiple-output (MIMO) orthogonal frequency-division multiplexing (OFDM) systems. In this correspondence, we propose a deep…

Information Theory · Computer Science 2024-04-26 Yiran Guo , Wei Chen , Jialong Xu , Lun Li , Bo Ai

Analog to Digital Converters (ADCs) are a major contributor to the energy consumption on the receiver side of millimeter-wave multiple-input multiple-output (MIMO) systems with large antenna arrays. Consequently, there has been significant…

Information Theory · Computer Science 2022-02-08 Farhad Shirani , Hamidreza Aghasi

This paper proposes a hybrid dimming scheme based on joint LED selection and precoding design (TASP-HD) for multiple-user (MU) multiple-cell (MC) visible light communications (VLC) systems. In TASP-HD, both the LED selection and the…

Systems and Control · Electrical Eng. & Systems 2021-09-15 Yang Yang , Yujie Yang , Mingzhe Chen , Chunyan Feng , Hailun Xia , Shuguang Cui , H. Vincent Poor

We propose and model an optical communication scheme for short distance datacom links based on the distribution of information across a wide comb spectrum. This modulation format, orthogonal delay division multiplexing, allows the…

Optics · Physics 2023-10-27 Andrea Zazzi , Jeremy Witzens

Visible light communications (VLC) are motivated by the radio-frequency (RF) spectrum crunch and fast-growing solid-state lighting technology. VLC relies on white light emitting diodes (LEDs) to provide communication and illumination…

Information Theory · Computer Science 2014-06-25 Zhenhua Yu , Arthur J. Redfern , G. Tong Zhou

In recent years, the demand for high speed wireless networking has increased considerably due to the enormous number of devices connected to the Internet. In this context, optical wireless communication (OWC) has received tremendous…

Information Theory · Computer Science 2021-09-28 Ahmad Adnan Qidan , Taisir El-Gorashi , Jaafar M. H. Elmirghani

Multiple Input Multiple Output (MIMO) Orthogonal Frequency Division Multiplexing (OFDM) is a promising transmission scheme for high performance broadband wireless communications. However, this technique suffers from a major drawback which…

Information Theory · Computer Science 2014-12-30 Mouna Sghaier , Fatma Abdelkefi , Mohamed Siala

While simulation tools for visible light communication (VLC) with photo detectors (PDs) have been widely investigated, similar tools for optical camera communication (OCC) with complementary metal oxide semiconductor (CMOS) sensors are…

Signal Processing · Electrical Eng. & Systems 2025-04-15 Srivathsan Chakaravarthi Narasimman , Arokiaswami Alphones

In this paper, we propose a lightwave power transfer-enabled underwater optical integrated sensing and communication (O-ISAC) system, where an access point (AP) mounted on a seasurface ship transmits lightwave signals to two nodes, namely…

Systems and Control · Electrical Eng. & Systems 2025-11-06 Kapila W. S. Palitharathna , Constantinos Psomas , Ioannis Krikidis

Millimeter-wave (mmWave) technology is a crucial enabler for next-generation networks because it offers substantially greater available bandwidth. mmWave multiple-input multiple-output (MIMO) systems cannot rely solely on fully digital…

Signal Processing · Electrical Eng. & Systems 2026-04-21 Navid Reyhanian , Parisa Ramezani , Emil Björnson
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