High data rate multiple input multiple output (MIMO) optical wireless communications using white LED lighting

Lubin Zeng, Dominic O'Brien, Hoa Le Minh, Grahame Faulkner, Kyungwoo Lee, Daekwang Jung, YunJe Oh, Eun Tae Won

Research output: Contribution to journalArticlepeer-review

700 Citations (Scopus)

Abstract

Solid-state lighting is a rapidly growing area of research and applications, due to the reliability and predicted high efficiency of these devices. The white LED sources that are typically used for general illumination can also be used for data transmission, and Visible Light Communications (VLC) is a rapidly growing area of research. One of the key challenges is the limited modulation bandwidth of sources, typically several MHz. However, as a room or coverage space would typically be illuminated by an array of LEDs there is the potential for parallel data transmission, and using optical MIMO techniques is potentially attractive for achieving high data rates. In this paper we investigate non-imaging and imaging MIMO approaches: a non-imaging optical MIMO system does not perform properly at all receiver positions due to symmetry, but an imaging based system can operate under all foreseeable circumstances. Simulations show such systems can operate at several hundred Mbit/s, and up to Gbit/s in many circumstances.
Original languageEnglish
Pages (from-to)1654-1662
JournalIEEE Journal on Selected Areas in Communications
Volume27
Issue number9
DOIs
Publication statusPublished - Dec 2009

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