Paul Anthony Haigh | Newcastle University (original) (raw)
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Papers by Paul Anthony Haigh
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Journal of Lightwave Technology, 2015
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IEEE Photonics Technology Letters, 2015
ABSTRACT
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5G networks have to offer extremely high capacity for novel streaming applications. One of the mo... more 5G networks have to offer extremely high capacity for novel streaming applications. One of the most promising approaches is to embed large numbers of co-operating small cells into the macro-cell coverage area. Alternatively, optical wireless based technologies can be adopted as an alternative physical layer offering higher data rates. Visible light communications (VLC) is an emerging technology for future high capacity communication links (it has been accepted to 5GPP) in the visible range of the electromagnetic spectrum (~370–780 nm) utilizing light-emitting diodes (LEDs) simultaneously provide data transmission and room illumination. A major challenge in VLC is the LED modulation bandwidths, which are limited to a few MHz. However, myriad gigabit speed transmission links have already been demonstrated. Non line-of-sight (NLOS) optical wireless is resistant to blocking by people and obstacles and is capable of adapting its’ throughput according to the current channel state information. Concurrently, organic polymer LEDs (PLEDs) have become the focus of enormous attention for solid-state lighting applications due to their advantages over conventional white LEDs such as ultra-low costs, low heating temperature, mechanical flexibility and large photoactive areas when produced with wet processing methods. This paper discusses development of such VLC links with a view to implementing ubiquitous broadcasting networks featuring advanced modulation formats such as orthogonal frequency division multiplexing (OFDM) or carrier-less amplitude and phase modulation (CAP) in conjunction with equalization techniques. Finally, this paper will also summarize the results of the European project ICT COST IC1101 OPTICWISE (Optical Wireless Communications - An Emerging Technology) dealing VLC and OLEDs towards 5G networks.
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IEEE Journal on Selected Areas in Communications, 2015
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IEEE Journal on Selected Areas in Communications, 2015
ABSTRACT In this paper we experimentally demonstrate a multiband carrier-less amplitude and phase... more ABSTRACT In this paper we experimentally demonstrate a multiband carrier-less amplitude and phase modulation format for the first time in VLC. We split a conventional carrier-less amplitude and phase modulated signal into m subcarriers in order to protect from the attenuation experienced at high frequencies in low-pass VLC systems. We investigate the relationship between throughput/spectral efficiency and m, where m = {10, 8, 6, 4, 2, 1} subcarriers over a fixed total signal bandwidth of 6.5 MHz. We show that transmission speeds (spectral efficiencies) of 31.53 (4.85), 30.88 (4.75), 25.40 (3.90), 23.65 (3.60), 15.78 (2.40), 9.04 (1.40) Mb/s (b/s/Hz) can be achieved for the listed values of m, respectively. Access: http://ieeexplore.ieee.org/xpl/articleDetails.jsp?arnumber=7112468&filter%3DAND%28p_IS_Number%3A7206775%29
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Visible light communications is a technology with enormous potential for a wide range of applicat... more Visible light communications is a technology
with enormous potential for a wide range of
applications within next generation transmission
and broadcasting technologies. VLC offers
simultaneous illumination and data communica-
tions by intensity modulating the optical power
emitted by LEDs operating in the visible range
of the electromagnetic spectrum (~370–780
nm). The major challenge in VLC systems to
date has been in improving transmission speeds,
considering the low bandwidths available with
commercial LED devices. Thus, to improve the
spectral usage, the research community has
increasingly turned to advanced modulation for-
mats such as orthogonal frequency-division mul-
tiplexing. In this article we introduce a new
modulation scheme into the VLC domain; multi-
band carrier-less amplitude and phase modula-
tion (m-CAP) and describe in detail its
performance within the context of bandlimited
systems.
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In this paper we experimentally demonstrate a 10 Mb/s error free visible light communications (VL... more In this paper we experimentally demonstrate a 10 Mb/s error free visible light communications (VLC) system using polymer light-emitting diodes (PLEDs) for the first time. The PLED under test is a blue emitter with ∼600 kHz bandwidth. Having such a low bandwidth means the introduction of an intersymbol interference (ISI) induced penalty at higher transmission speeds and thus the requirement for an equalizer. In this work we improve on previous literature by implementing a decision feedback equalizer, rather than a linear equalizer. Considering 7% and 20% forward error correction codes, transmission speeds up to ∼12 Mb/s can be supported.
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Journal of Lightwave Technology, 2015
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Optical Fiber Communication Conference, 2015
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Optical Fiber Communication Conference, 2015
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Optical Fiber Communication Conference, 2014
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Journal of Lightwave Technology, 2015
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![Research paper thumbnail of Visible light communications: 375 Mbits/s data rate with a 160 kHz bandwidth organic photodetector and artificial neural network equalization [Invited]](https://attachments.academia-assets.com/53592985/thumbnails/1.jpg)
](Photon. Res., 2013
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2013 IEEE International Conference on Communications (ICC), 2013
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Proceedings of the 2013 18th European Conference on Network and Optical Communications & 2013 8th Conference on Optical Cabling and Infrastructure (NOC-OC&I), 2013
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Opt. Express, 2014
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Bookmarks Related papers MentionsView impact
Journal of Lightwave Technology, 2015
Bookmarks Related papers MentionsView impact
Bookmarks Related papers MentionsView impact
IEEE Photonics Technology Letters, 2015
ABSTRACT
Bookmarks Related papers MentionsView impact
5G networks have to offer extremely high capacity for novel streaming applications. One of the mo... more 5G networks have to offer extremely high capacity for novel streaming applications. One of the most promising approaches is to embed large numbers of co-operating small cells into the macro-cell coverage area. Alternatively, optical wireless based technologies can be adopted as an alternative physical layer offering higher data rates. Visible light communications (VLC) is an emerging technology for future high capacity communication links (it has been accepted to 5GPP) in the visible range of the electromagnetic spectrum (~370–780 nm) utilizing light-emitting diodes (LEDs) simultaneously provide data transmission and room illumination. A major challenge in VLC is the LED modulation bandwidths, which are limited to a few MHz. However, myriad gigabit speed transmission links have already been demonstrated. Non line-of-sight (NLOS) optical wireless is resistant to blocking by people and obstacles and is capable of adapting its’ throughput according to the current channel state information. Concurrently, organic polymer LEDs (PLEDs) have become the focus of enormous attention for solid-state lighting applications due to their advantages over conventional white LEDs such as ultra-low costs, low heating temperature, mechanical flexibility and large photoactive areas when produced with wet processing methods. This paper discusses development of such VLC links with a view to implementing ubiquitous broadcasting networks featuring advanced modulation formats such as orthogonal frequency division multiplexing (OFDM) or carrier-less amplitude and phase modulation (CAP) in conjunction with equalization techniques. Finally, this paper will also summarize the results of the European project ICT COST IC1101 OPTICWISE (Optical Wireless Communications - An Emerging Technology) dealing VLC and OLEDs towards 5G networks.
Bookmarks Related papers MentionsView impact
IEEE Journal on Selected Areas in Communications, 2015
Bookmarks Related papers MentionsView impact
IEEE Journal on Selected Areas in Communications, 2015
ABSTRACT In this paper we experimentally demonstrate a multiband carrier-less amplitude and phase... more ABSTRACT In this paper we experimentally demonstrate a multiband carrier-less amplitude and phase modulation format for the first time in VLC. We split a conventional carrier-less amplitude and phase modulated signal into m subcarriers in order to protect from the attenuation experienced at high frequencies in low-pass VLC systems. We investigate the relationship between throughput/spectral efficiency and m, where m = {10, 8, 6, 4, 2, 1} subcarriers over a fixed total signal bandwidth of 6.5 MHz. We show that transmission speeds (spectral efficiencies) of 31.53 (4.85), 30.88 (4.75), 25.40 (3.90), 23.65 (3.60), 15.78 (2.40), 9.04 (1.40) Mb/s (b/s/Hz) can be achieved for the listed values of m, respectively. Access: http://ieeexplore.ieee.org/xpl/articleDetails.jsp?arnumber=7112468&filter%3DAND%28p_IS_Number%3A7206775%29
Bookmarks Related papers MentionsView impact
Visible light communications is a technology with enormous potential for a wide range of applicat... more Visible light communications is a technology
with enormous potential for a wide range of
applications within next generation transmission
and broadcasting technologies. VLC offers
simultaneous illumination and data communica-
tions by intensity modulating the optical power
emitted by LEDs operating in the visible range
of the electromagnetic spectrum (~370–780
nm). The major challenge in VLC systems to
date has been in improving transmission speeds,
considering the low bandwidths available with
commercial LED devices. Thus, to improve the
spectral usage, the research community has
increasingly turned to advanced modulation for-
mats such as orthogonal frequency-division mul-
tiplexing. In this article we introduce a new
modulation scheme into the VLC domain; multi-
band carrier-less amplitude and phase modula-
tion (m-CAP) and describe in detail its
performance within the context of bandlimited
systems.
Bookmarks Related papers MentionsView impact
In this paper we experimentally demonstrate a 10 Mb/s error free visible light communications (VL... more In this paper we experimentally demonstrate a 10 Mb/s error free visible light communications (VLC) system using polymer light-emitting diodes (PLEDs) for the first time. The PLED under test is a blue emitter with ∼600 kHz bandwidth. Having such a low bandwidth means the introduction of an intersymbol interference (ISI) induced penalty at higher transmission speeds and thus the requirement for an equalizer. In this work we improve on previous literature by implementing a decision feedback equalizer, rather than a linear equalizer. Considering 7% and 20% forward error correction codes, transmission speeds up to ∼12 Mb/s can be supported.
Bookmarks Related papers MentionsView impact
Journal of Lightwave Technology, 2015
Bookmarks Related papers MentionsView impact
Optical Fiber Communication Conference, 2015
Bookmarks Related papers MentionsView impact
Optical Fiber Communication Conference, 2015
Bookmarks Related papers MentionsView impact
Bookmarks Related papers MentionsView impact
Optical Fiber Communication Conference, 2014
Bookmarks Related papers MentionsView impact
Journal of Lightwave Technology, 2015
Bookmarks Related papers MentionsView impact
Bookmarks Related papers MentionsView impact
Photon. Res., 2013
Bookmarks Related papers MentionsView impact
2013 IEEE International Conference on Communications (ICC), 2013
Bookmarks Related papers MentionsView impact
Proceedings of the 2013 18th European Conference on Network and Optical Communications & 2013 8th Conference on Optical Cabling and Infrastructure (NOC-OC&I), 2013
Bookmarks Related papers MentionsView impact
Opt. Express, 2014
Bookmarks Related papers MentionsView impact