Event Name IEEE & ITEE Evening Talk by Prof. Jean Armstrong on Visible Light Communications: The Next Frontier for Wireless Communications?
Start Date 2nd Nov 2011 6:00pm
End Date
Duration N/A

Title: Visible Light Communications: The Next Frontier for Wireless Communications? [pdf]

Speaker: Prof. Jean Armstrong

Time and Date: 6:00pm refreshments for, 6:30pm start, Wednesday, 2 November 2011

Place: John Connell Auditorium, Engineers Australia Building, 21 Bedford Street, North Melbourne


Light emitting diodes (LEDs) are replacing conventional incandescent and fluorescent lighting in many applications because of their energy efficiency and long life. While primarily designed for lighting, these LEDs can also be used to transmit very high speed data. For example, 500 Mbit/s data transmission has been demonstrated using a white lighting LED. In the future LED indoor lighting could also be used for very high speed data download. LEDs are also increasingly being used in traffic lights and in car lights. Potential communications applications include traffic lights being used to transmit data about traffic conditions to oncoming cars and car tail lights transmitting data about speed to a following car. While visible light communications (VLC) has many advantages, including large license free bandwidth, security and immunity from RF interference, there are also many research challenges. Because intensity modulation and direct detection (IM/DD) must be used in these systems, many of the techniques developed for RF wireless communications cannot be applied. This talk will describe the current status of research worldwide on visible light communications, and outline some of the emerging research challenges.

Speaker Bio:

Jean Armstrong is a Professor in the Department of Electrical and Computer Systems Engineering (ECSE) at Monash University and serves as research director in ECSE. Most of her recent research in Digital Communications has been on Orthogonal Frequency Division Multiplexing (OFDM) and she has published many very highly cited papers and has six fully commercialized patents in this field. Her earlier OFDM work was on RF wireless applications but in 2005 she recognized the potential for applying OFDM to optical communications. The optical OFDM work led to the award to Monash of the prestigious Peter Doherty Award for Innovation at Commercialization Expo 2006. Asymmetrically clipped optical OFDM (ACO-OFDM), which forms the basis of one of the patents is the most promising modulation technique in the emerging field of visible light communications. In 2008 she was inducted into the Victorian Honour Roll of Women in recognition both of her encouragement of women engineers and her contribution to digital communication research. She is a Fellow of the Institute of Engineers Australia (FIE Aust.), Senior Member of IEEE and member of IET.

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