Experimental Characterization of RGB LED Transceiver in Low-Complexity LED-to-LED Link

This paper proposes a low-complexity and energy-efficient light emitting diode (LED)-to-LED communication system for Internet of Things (IoT) devices with data rates up to 200 kbps over an error-free transmission distance up to 7 cm. The system is based on off-the-shelf red-green-blue (RGB) LEDs, of which the red sub-LED is employed as photodetector in photovoltaic mode while the green sub-LED is the transmitter. The LED photodetector is characterized in the terms of its noise characteristics and its response to the light intensity. The system performance is then analysed in terms of bandwidth, bit error rate (BER) and the signal to noise ratio (SNR). A matched filter is proposed, which optimises the performance and increases the error-free distance.

[1]  Richard Binns,et al.  Characterization of RGB LEDs as Emitter and Photodetector for LED-to-LED Communication , 2020, 2020 12th International Symposium on Communication Systems, Networks and Digital Signal Processing (CSNDSP).

[2]  Qing Wang,et al.  OpenVLC1.2: Achieving higher throughput in low-end visible light communication networks , 2018, 2018 14th Annual Conference on Wireless On-demand Network Systems and Services (WONS).

[3]  Nils Ole Tippenhauer,et al.  Low-complexity Visible Light Networking with LED-to-LED communication , 2012, 2012 IFIP Wireless Days.

[4]  G. Stepniak,et al.  Transmission Beyond 100 Mbit/s Using LED Both as a Transmitter and Receiver , 2015, IEEE Photonics Technology Letters.

[5]  Nils Ole Tippenhauer,et al.  Toys communicating with LEDs: Enabling toy cars interaction , 2012, 2012 IEEE Consumer Communications and Networking Conference (CCNC).

[6]  Jiangtao Li,et al.  Retro-VLC: Enabling Battery-free Duplex Visible Light Communication for Mobile and IoT Applications , 2015, HotMobile.

[7]  Richard Binns,et al.  Characterisation and Interference Model of Contemporary Artificial Light Sources Noise on a VLC channel , 2018, 2018 11th International Symposium on Communication Systems, Networks & Digital Signal Processing (CSNDSP).

[8]  Zabih Ghassemlooy,et al.  Experimental demonstration of a 10BASE-T Ethernet visible light communications system using white phosphor light-emitting diodes , 2014, IET Circuits Devices Syst..

[9]  Umesh Chandra Pati,et al.  IoT based monitoring and control of appliances for smart home , 2016, 2016 IEEE International Conference on Recent Trends in Electronics, Information & Communication Technology (RTEICT).

[10]  P. Saengudomlert,et al.  Demonstration of visible light communications using RGB LEDs in an indoor environment , 2010, ECTI-CON2010: The 2010 ECTI International Confernce on Electrical Engineering/Electronics, Computer, Telecommunications and Information Technology.

[11]  Wasiu O. Popoola,et al.  Visible Light Communications: Theory and Applications , 2016 .

[12]  Volker Jungnickel,et al.  High-speed visible light communication systems , 2013, IEEE Communications Magazine.

[13]  P. K. Chaturvedi,et al.  Communication Systems , 2002, IFIP — The International Federation for Information Processing.

[14]  Zabih Ghassemlooy,et al.  Optical Internet of Things within 5G: Applications and Challenges , 2018, 2018 IEEE International Conference on Internet of Things and Intelligence System (IOTAIS).

[15]  Stefan Schmid,et al.  Connecting networks of toys and smartphones with visible light communication , 2014, IEEE Communications Magazine.

[16]  Sira Yongchareon,et al.  Visible Light Communication: A System Perspective—Overview and Challenges , 2019, Sensors.

[17]  Zabih Ghassemlooy,et al.  Enabling VLC and WiFi Network Technologies and Architectures Toward 5G , 2019 .

[18]  Stefan Videv,et al.  VLC: Beyond point-to-point communication , 2014, IEEE Communications Magazine.

[19]  Hao-Chung Kuo,et al.  450-nm GaN laser diode enables high-speed visible light communication with 9-Gbps QAM-OFDM. , 2015, Optics express.

[20]  Harald Haas,et al.  Demonstration of a Bi-directional visible light communication with an overall sum-rate of 110 Mb/s using LEDs as emitter and detector , 2014, 2014 IEEE Photonics Conference.

[21]  Dominic O'Brien,et al.  Exploiting novel concepts for visible light communications: from light-based IoT to living surfaces , 2019, Optik.

[22]  Darren Leigh,et al.  Very Low-Cost Sensing and Communication Using Bidirectional LEDs , 2003, UbiComp.

[23]  Antonio J. Jara.  Wearable Internet: Powering Personal Devices with the Internet of Things Capabilities , 2014, 2014 International Conference on Identification, Information and Knowledge in the Internet of Things.