Sedna LED investigates Li-Fi data transmission capabilities for lighting networks

Feb. 6, 2014
Date Announced: 06 Feb 2014 Although typical associations regarding LED technology relate to conceptualisations surrounding LED tube lighting, LED panels or downlights, UK researchers are believed to have achieved data transmission speeds of 10GBit per second, using an advanced iteration of the emerging li-fi technology.The research, known as the ultra-parallel visible light communications project utilises a digital modulation technique called orthogonal frequency divisional multiplexing (OFDM), to create ultra-high-speed, high security, biologically friendly communications networks that allow the creation and expansion of seamless computing applications using very large bandwidth high-frequency pulsed light instead of radio waves and microwaves.Its use may help provide partial and full solutions to a number of technological problems: increasingly limited availability of conventional bandwidths for electronic equipment; possible communications interfaces with sensitive electrical equipment; data security; and perceived negative health consequences.As a result, lighting wholesaler Sedna LED has investigated li-fi as a potentially valuable addition to future generations of technology. The survey aimed to assess awareness levels surrounding Li-fi developments and the scope for adoption, results demonstrated that 76% of respondents were unaware of its existence and less than half of respondents were willing to embrace the technology at this point in time. Thus, the technology is still in its infancy and needs further development.Dr Kang Li- research associate at the University of South-Wales suggests: “Li-fi promises to be more cost effective and energy efficient than existing wireless radio systems, given the ubiquity of LED bulbs and the fact that lighting infrastructure is already in place. However, block the light, you block the signal”. For full results from the survey and a breakdown of responses visit

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