Results 21 to 30 of about 5,689 (160)
Iteration Time Prediction for CNN in Multi-GPU Platform: Modeling and Analysis
IEEE Access, 2019 Neural networks, as powerful models for many difficult learning tasks, have created an increasingly heavy computational burden. More and more researchers focus on how to optimize the training time, and one of the difficulties is to establish a general ...
Ziqian Pei +4 more
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IEEE Photonics Journal, 2022 We consider 3-dimensional (3D) visible light positioning (VLP) based on smartphone camera in an indoor scenario. Based on the positioning model in the quantized pixel-domain, we characterize the 3D normalized positioning error metric (NPEM) through the ...
Jiaojiao Xu, Nuo Huang, Chen Gong
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Underwater Optical Wireless Communication
IEEE Access, 2016 Underwater wireless information transfer is of great interest to the military, industry, and the scientific community, as it plays an important role in tactical surveillance, pollution monitoring, oil control and maintenance, offshore explorations, climate change monitoring, and oceanography research.
Hemani Kaushal, Georges Kaddoum
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Overview of Vehicle Optical Wireless Communications [PDF]
IEEE Access, 2020 Effective information transmission between vehicles has become one of the solutions to improve road safety. Based on the huge advantages of optical wireless data transmission technology, this article summarizes the research status of unmanned vehicles in optical wireless communication (OWC).
Hongye Mei +4 more
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Flip-OFDM for optical wireless communications
2011 IEEE Information Theory Workshop, 2011 published in IEEE Information Theory Workshop, Paraty Brazil, Sept ...
Nirmal Fernando +2 more
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Optical wireless communications for micromachines
SPIE Proceedings, 2006 A key challenge for wireless sensor networks is minimizing the energy required for network nodes to communicate with each other, and this becomes acute for self-powered devices such as 'smart dust'. Optical communications is a potentially attractive solution for such devices.
O'Brien, D +6 more
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Optimal Transmission of VLC System in the Presence of LED Nonlinearity and APD Module Saturation
IEEE Photonics Journal, 2018 We address the optimal transmission of LED-based visible light communication (VLC) system using direct current biased optical orthogonal frequency division multiplexing (DCO-OFDM) modulation and avalanche photodiode (APD) receiver.
Meijun Gao, Chao Li, Zhengyuan Xu
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Multipath Extraction Based UL/DL Channel Estimation for FDD Massive MIMO-OFDM Systems
IEEE Access, 2021 In this paper, we propose a multipath extraction based uplink/downlink channel estimation scheme for wideband massive multiple-input multiple-output (MIMO) systems, where orthogonal frequency division multiplexing (OFDM) is adopted and the beam squint ...
Wei Ji, Feng Zhang, Ling Qiu
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Enhanced System Acquisition for NB-IoT
IEEE Access, 2017 Machine-type communication (MTC) is the key technology to support data transfer among devices (sensors and actuators) in Internet of Things (IoT).
Wenjie Yang +6 more
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IEEE Photonics Journal, 2021 In this paper, we establish a water-to-air (W2A) visible light communication (VLC) link using green light emitting diode (LED), and investigate the coverage characteristics of the designed W2A-VLC link under calm and wavy water conditions.
Tianrui Lin +4 more
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