• 1619 Citations
  • 16 h-Index

Research output per year

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Personal profile

Research Interests

Photonics; Embedded system; Signal processing; Communication systems


Dr. Rajbhandari joined Coventry University in November 2015 and is currently working as a Lecturer in School of computing Engineering and Maths. He obtained his bachelor’s degree in Electronics and Communication Engineering from Institute of Engineering, Pulchowk Campus (Tribhuvan University), Nepal in 2004. He obtained an MSc in Optoelectronic and Communication Systems with Distinction in 2006 from Northumbria University and was awarded the P O Byrne prize for the most innovative project. He then joined the Optical Communications Research Lab (OCRG) at Northumbria University as a PhD candidate and was awarded a PhD degree in 2010.He then worked at Northumbria University as a senior research assistant (Dec. 2009-Aug. 2012) and research fellow (Sep. 2012- Dec. 2012). He joined the University of Oxford as a posts-doctorate Research assistant in Dec. 2012 and worked on EPSRC's Ultra-parallel visible light communications (UP-VLC) project which was a collaboration between five UK universities.

Dr. Rajbhandari has published more than 100 scholarly articles in the area of optical communications and is a co-author of a book on “Optical Wireless Communications – Systems and Channel Modelling with Matlab (2012). He was invited speaker in IEICE Information and Communication Technology Forum 2015 at Manchester. He has also served as a local organizing committee member for CSNDSP2010, publication chair for NOC/OC and I 2011 and proceeding editor for EFEA 2012 and NOC/OC and I 2011 as well as reviewer for several leading publications including the IEEE, OSA and IET journals. His research interests lie in the area of optical wireless communications, modulation techniques, equalization, artificial intelligence and wavelet transforms. He is a member of IEEE and an associate member of the Institute of Physics.


  • Optical communication
  • Visible light communications
  • Channel modelling
  • Modulation schemes
  • MIMO (imaging and non-imaging)
  • Optics design
  • Organic devices
  • Tracking and positioning
• Optical wireless communication/free space optics - Channel modelling - Modulation schemes - Atmospheric effect and mitigation - Spatial and angular diversity schemes • Hybrid FSO/RF system • Signal processing and equalisation • Artificial neural network • Biomedical signal processing • Error control code

Areas of Expertise:

  • Visible light communications / Optical wireless communication
  • Photonics
  • Digital signal processing
  • Artificial neural network
  • Hybrid RF/FSO system
  • Optoelectronics
  • Analogue and Digital Electronics

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Research Output

Optical Antennas for Wavelength Division Multiplexing in Visible Light Communications beyond the Étendue Limit

Manousiadis, P. P., Chun, H., Rajbhandari, S., Vithanage, D. A., Mulyawan, R., Faulkner, G., Haas, H., O'Brien, D. C., Collins, S., Turnbull, G. A. & Samuel, I. D. W., 19 Feb 2020, In : Advanced Optical Materials. 8, 4, 1901139.

Research output: Contribution to journalArticle

  • 1 Citation (Scopus)

    Performance of Spatial Diversity DCO-OFDM in a Weak Turbulence Underwater Visible Light Communication Channel

    Jiang, H., Qiu, H., He, N., Popoola, W., Ahmad, Z. & Rajbhandari, S., 15 Apr 2020, In : Journal of Lightwave Technology. 38, 8, p. 2271-2277 7 p., 8949728.

    Research output: Contribution to journalArticle

    Open Access
  • 1 Citation (Scopus)
    53 Downloads (Pure)

    Transmitter and receiver technologies for optical wireless

    O’Brien, D., Rajbhandari, S. & Chun, H., 17 Apr 2020, In : Philosophical Transactions of the Royal Society A: Mathematical, Physical and Engineering Sciences. 378, 2169, 20190182.

    Research output: Contribution to journalReview article

    Open Access
  • 1 Citation (Scopus)

    对数正态分布衰落下的光OFDM 水下可见光通信空间分集系统

    Translated title of the contribution: Optical OFDM spatial diversity system in lognormal fading UVLC channelsJiang, H., Qiu, H., Ning, H., Yue, W., Ahmad, Z. & Rajbhandari, S., 25 Feb 2020, In : Infrared and Laser Engineering. 49, 2, 7 p., 0203008.

    Research output: Contribution to journalArticle

  • Indoor Intruder Tracking Using Visible Light Communications

    Al Sallami, F. M. Y., Ahmad, Z., Zvanovec, S., Haigh, P. A., Haas, O. & Rajbhandari, S., 21 Oct 2019, In : Sensors. 19, 20, 14 p., 4578.

    Research output: Contribution to journalArticle

    Open Access
  • 4 Citations (Scopus)
    2 Downloads (Pure)


    • 1 Participation in conference

    IEICE Information and Communication Technology Forum 2015

    Sujan Rajbhandari (Speaker)
    4 Jun 2015

    Activity: Participating in or organising an eventParticipation in conference