S
Sujan Rajbhandari
Researcher at Huawei
Publications - 213
Citations - 6507
Sujan Rajbhandari is an academic researcher from Huawei. The author has contributed to research in topics: Visible light communication & Optical wireless. The author has an hindex of 32, co-authored 204 publications receiving 5538 citations. Previous affiliations of Sujan Rajbhandari include Bangor University & Coventry University.
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Optical Wireless Communications: System and Channel Modelling with MATLAB®
TL;DR: The authors highlight past and current research activities to illustrate optical sources, transmitters, detectors, receivers, and other devices used in optical wireless communications and describe techniques for using theoretical analysis and simulation to mitigate channel impact on system performance.
Journal ArticleDOI
A 3-Gb/s Single-LED OFDM-Based Wireless VLC Link Using a Gallium Nitride $\mu{\rm LED}$
Dobroslav Tsonev,Hyunchae Chun,Sujan Rajbhandari,Jonathan J. D. McKendry,Stefan Videv,Erdan Gu,Mohsin Haji,Scott Watson,Anthony Kelly,Grahame Faulkner,Martin D. Dawson,Harald Haas,Dominic O'Brien +12 more
TL;DR: In this article, the authors presented a visible light communication (VLC) system based on a single 50-μm gallium nitride light emitting diode (LED) with a 3-dB modulation bandwidth of at least 60 MHz.
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High Bandwidth GaN-Based Micro-LEDs for Multi-Gb/s Visible Light Communications
Ricardo Ferreira,Enyuan Xie,Jonathan J. D. McKendry,Sujan Rajbhandari,Hyunchae Chun,Grahame Faulkner,Scott Watson,Anthony Kelly,Erdan Gu,Richard V. Penty,Ian H. White,Dominic O'Brien,Martin D. Dawson +12 more
TL;DR: In this paper, the authors report on progress in the development of micro-scale GaN LEDs (micro-LEDs), optimized for visible light communications (VLC) using ON-OFF-keying, pulse-amplitude modulation and orthogonal frequency division multiplexing modulation schemes.
Proceedings ArticleDOI
A MIMO-ANN system for increasing data rates in organic visible light communications systems
Paul Anthony Haigh,Zabih Ghassemlooy,Ioannis Papakonstantinou,Francesco Tedde,Sandro Francesco Tedde,Oliver Hayden,Sujan Rajbhandari +6 more
TL;DR: In order to speed up date rates further, an artificial neural network (ANN) is implemented to classify the signal and correct the error induced by the matrix inversion at the receiver, allowing a gross bit rate of 1.8 Mb/s in the best case.
Journal ArticleDOI
LED Based Wavelength Division Multiplexed 10 Gb/s Visible Light Communications
Hyunchae Chun,Sujan Rajbhandari,Grahame Faulkner,Dobroslav Tsonev,Enyuan Xie,Jonathan J. D. McKendry,Erdan Gu,Martin D. Dawson,Dominic O'Brien,Harald Haas +9 more
TL;DR: A trichromatic approach to wavelength division multiplexing using the different colours required to generate white light to transmit different data streams is described and the influence of colour combination on achievable data rate is analysed.