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This paper proposes an indoor visible light communication (VLC) system with multiple transmitters and receivers. Due to diffusivity of LED light beams, photodiode receive signals from many directions. We use one concave and one convex lens…

信号处理 · 电气工程与系统科学 2021-01-12 Jiaqi Wei , Chen Gong , Nuo Huang , Zhengyuan Xu

The ability to perform complex tasks from detailed instructions is a key to many remarkable achievements of our species. As humans, we are not only capable of performing a wide variety of tasks but also very complex ones that may entail…

人工智能 · 计算机科学 2024-07-23 Xiaoxuan Lei , Lucas Gomez , Hao Yuan Bai , Pouya Bashivan

This work concerns receiver design for light emitting diode (LED) communications where the LED nonlinearity can severely degrade the performance of communications. We propose extreme learning machine (ELM) based non-iterative receivers and…

信号处理 · 电气工程与系统科学 2020-12-30 Dawei Gao , Qinghua Guo , Jun Tong , Nan Wu , Jiangtao Xi , Yanguang Yu

Vandermonde-subspace frequency division multiplexing (VFDM) is an overlay spectrum sharing technique for cognitive radio. VFDM makes use of a precoder based on a Vandermonde structure to transmit information over a secondary system, while…

A hybrid teaching approach that relied on combining Project Based Learning with Team Based Learning was trialled in an engineering module during the past five years. Our motivation was to expose students to real-world authentic engineering…

系统与控制 · 电气工程与系统科学 2021-11-29 Rami Ghannam , Cecilia Chan

Channel estimation and signal detection are essential steps to ensure the quality of end-to-end communication in orthogonal frequency-division multiplexing (OFDM) systems. In this paper, we develop a DDLSD approach, i.e., Data-driven Deep…

信息论 · 计算机科学 2021-07-29 Guangliang Pan , Zitong Liu , Wei Wang , Minglei Li

Two discrete-time interference channel models are developed for information transmission over a single span of optical fiber using wavelength-division multiplexing (WDM) and lumped amplification. The models are derived from the nonlinear…

信息论 · 计算机科学 2017-08-14 Hassan Ghozlan , Gerhard Kramer

Near-field beam training is essential for acquiring channel state information in 6G extremely large-scale multiple input multiple output (XL-MIMO) systems. To achieve low-overhead beam training, existing method has been proposed to leverage…

信息论 · 计算机科学 2024-06-13 Tianyue Zheng , Mingyao Cui , Zidong Wu , Linglong Dai

As a candidate waveform for next-generation wireless communications, generalized frequency division multiplexing (GFDM) features several decent properties which make it promising. In this paper, we systematically overview the research about…

信息论 · 计算机科学 2020-08-21 Ching-Lun Tai , Tzu-Han Wang , Yu-Hua Huang

The new generation of LED-based illuminating infrastructures has enabled a "dual-paradigm" where LEDs are used for both illumination and communication purposes. The ubiquity of lighting makes visible light communication (VLC) well suited…

网络与互联网体系结构 · 计算机科学 2018-01-31 Angli Liu , Jiangtao Li , Guobin Shen , Chao Sun , Liqun Li , Feng Zhao

As data rates for multi-gigabit serial interfaces within multi-node compute systems approach and exceed 10 Gigabits per second (Gbps), board-to-board and chip-to-chip optical signaling solutions become more attractive, particularly for…

信号处理 · 电气工程与系统科学 2023-01-25 James Kruchowski , Vladimir Sokolov , Nathan E. Harff , Mark A. Nelson , KY Liou , Graham Cameron , Barry K. Gilbert , Erik S. Daniel

Hybrid analog and digital beamforming transceivers are instrumental in addressing the challenge of expensive hardware and high training overheads in the next generation millimeter-wave (mm-Wave) massive MIMO (multiple-input multiple-output)…

信号处理 · 电气工程与系统科学 2022-01-04 Ahmet M. Elbir , Kumar Vijay Mishra , M. R. Bhavani Shankar , Björn Ottersten

Optical neural networks (ONNs), or optical neuromorphic hardware accelerators, have the potential to dramatically enhance the computing power and energy efficiency of mainstream electronic processors, due to their ultralarge bandwidths of…

Index modulation (IM) brings the reduction of power consumption and complexity of the transmitter to classical multiple-input multiple-output orthogonal frequency division multiplexing (MIMO-OFDM) systems. However, due to the introduction…

信号处理 · 电气工程与系统科学 2019-11-14 Jinxue Liu , Hancheng Lu

Vision-language models are integral to computer vision research, yet many high-performing models remain closed-source, obscuring their data, design and training recipe. The research community has responded by using distillation from…

Mode-division multiplexing (MDM) is an emerging large-capacity data communication technology utilizing orthogonal guiding modes as independent data streams. One of the challenges of multimode waveguide routing in MDM systems is decreasing…

光学 · 物理学 2019-06-12 S. Hadi Badri , H. Rasooli Saghai , Hadi Soofi

Current wireless communication technologies are insufficient in the face of ever-increasing demands. Therefore, novel and high-performance communication systems are needed. In this paper, a novel high data rate and high-performance index…

信号处理 · 电气工程与系统科学 2024-11-13 Burak Ahmet Ozden , Erdogan Aydin , Fatih Cogen

Spectral efficiency is a key design issue for all wireless communication systems. Orthogonal frequency division multiplexing (OFDM) is a very well-known technique for efficient data transmission over many carriers overlapped in frequency.…

网络与互联网体系结构 · 计算机科学 2013-03-28 R. G. Clegg , S. Isam , I. Kanaris , I. Darwazeh

The development of mode-division multiplexing techniques is an important step to increase the information processing capacity. In this context, we design an efficient and robust mode-division (de)multiplexing integrated device based on the…

光学 · 物理学 2018-06-04 G. Queraltó , V. Ahufinger , J. Mompart

Providing uplink high data rate is one of the big concerns in visible light communication (VLC) systems. This paper introduces an uplink VLC system based on an infrared transmitter with beam steering to provide high data rates. In this…

信号处理 · 电气工程与系统科学 2019-10-16 Osama Zwaid Alsulami , Mohammed T. Alresheedi , Jaafar M. H. Elmirghani