Indoor optical wireless communication: potential and state-of-the-art

Elgala, Hany; Mesleh, Raed; Haas, Harald

doi:10.1109/mcom.2011.6011734

Cited by 1,108 publications

(541 citation statements)

References 10 publications

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“…Due to the above constraints, the capacity of the Gaussian IM-DD channel is not the same as the classical Gaussian channel used for modeling radio-frequency (RF) communications. Studying the capacity of this channel is important for understanding the fundamental limits of OWC, which has witnessed increasing attention recently, see [2], [7]- [10] and references therein. In this context, the capacity of the singleinput single-output (SISO) IM-DD channel has been studied in [4], [11], [12].…”

Section: Introductionmentioning

confidence: 99%

Low-SNR Asymptotic Capacity of MIMO Optical Intensity Channels with Peak and Average Constraints

Chaaban

Rezki

Alouini

2018

IEEE Trans. Commun.

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Abstract-The low-SNR asymptotic capacity of the multipleinput multiple-output (MIMO) optical intensity channel is studied under both average and peak intensity constraints. We focus on low SNR, which can be modeled as the scenario where both constraints proportionally vanish, or where the peak constraint is held constant while the average constraint vanishes. A capacity upper bound is derived, and is shown to be tight at low SNR under both scenarios. The capacity achieving input distribution at low SNR is shown to be a maximally-correlated vectorbinary input distribution. Consequently, the low-SNR capacity of the channel is characterized. As a byproduct, it is shown that for a channel with peak intensity constraints only, or with peak intensity constraints and individual (per aperture) average intensity constraints, a simple scheme composed of coded onoff keying, spatial repetition, and maximum-ratio combining is optimal at low SNR.

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Section: Introductionmentioning

confidence: 99%

Low-SNR Asymptotic Capacity of MIMO Optical Intensity Channels with Peak and Average Constraints

Chaaban

Rezki

Alouini

2018

IEEE Trans. Commun.

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“…In [49], an aggregate parallel data transmission rate of 1.5 Gb/s was achieved by employing OOK modulation. Furthermore, various pulse position modulation (PPM) schemes have been introduced into VLC systems for achieving different design objectives [50]- [52], where the basic concept is to map the modulated signal into 2 M legitimate time-slots for M -ary PPM [53]. Another bandwidth-efficient baseband modulation technique is constituted by pulse amplitude modulation (PAM) [35], which was also invoked and evaluated in VLC systems [26], [54].…”

Section: Phy Techniques 1) Modulation Schemesmentioning

confidence: 99%

Optimization of Visible-Light Optical Wireless Systems: Network-Centric Versus User-Centric Designs

Zhang

Hanzo

2018

IEEE Commun. Surv. Tutorials

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Abstract-In order to counteract the explosive escalation of wireless tele-traffic, the communication spectrum has been gradually expanded from the conventional radio frequency (RF) band to the optical wireless (OW) domain. By integrating the classic RF band relying on diverse radio techniques and optical bands, the next-generation heterogeneous networks (HetNets) are expected to offer a potential solution for supporting the ever-increasing wireless tele-traffic. Owing to its abundant unlicensed spectral resources, visible light communications (VLC) combined with advanced illumination constitute a competent candidate for complementing the existing RF networks. Although the advantages of VLC are multi-fold, some challenges arise when incorporating VLC into the classic RF HetNet environments, which may require new system architectures. The user-centric (UC) design principle for VLC environments constitutes a novel and competitive design paradigm for the super dense multi-tier cell combinations of HetNets. The UC concept may be expected to become one of the disruptive techniques to be used in the forthcoming fifthgeneration era. This paper provides a comprehensive survey of visible-light-aided OW systems with special emphasis on the design and optimization of VLC networks, where the radically new UC design philosophy is reviewed. Finally, design guidelines are provided for VLC systems.

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“…The infrared and visible light region of the EM spectrum are of particular interest since the vast amount of available bandwidth is unregulated and free of electromagnetic interference (EMI). The growing infrastructure of LED lighting offers a particular opportunity for visible light communications (VLC) with power-efficient dual-use sources, which provide simultaneous illumination and very high rate wireless data transmission [1][2][3][4][5]. While VLC data links normally use photodiode (PD) receivers [5] (either positive-intrinsic-negative (PIN) PDs or avalanche PDs), there is a parallel opportunity for duality by using instead a solar cell for simultaneous energy harvesting and data detection.…”

mentioning

confidence: 99%

“…The growing infrastructure of LED lighting offers a particular opportunity for visible light communications (VLC) with power-efficient dual-use sources, which provide simultaneous illumination and very high rate wireless data transmission [1][2][3][4][5]. While VLC data links normally use photodiode (PD) receivers [5] (either positive-intrinsic-negative (PIN) PDs or avalanche PDs), there is a parallel opportunity for duality by using instead a solar cell for simultaneous energy harvesting and data detection. Wang et al recently showed that a standard commercial multi-crystalline silicon solar panel could be used for this dual purpose, to receive a data-rate of 11.84 Mbps while generating approximately 2 mW of electrical power [6,7].…”

mentioning

confidence: 99%

Organic solar cells as high-speed data detectors for visible light communication

Zhang¹,

Tsonev²,

Videv³

et al. 2015

Optica

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We show that solar cells, widely used in portable devices for power generation, can simultaneously extract a highspeed data signal in an optical wireless communication link. This paper reports the first use of an organic solar cell as an energy-harvesting receiver for visible light communications (VLC). While generating maximum power in the cell, the communication link can deliver a data-rate of 34.2 Mbps with a bit error rate of 4.08 × 10 -4 using an implementation of orthogonal frequency division multiplexing. This approach could lead to printed optical data receivers in future eco-friendly VLC systems. The looming radio frequency (RF) spectrum crunch has prompted research into alternative regions of the electromagnetic (EM) spectrum for future wireless communication systems. The infrared and visible light region of the EM spectrum are of particular interest since the vast amount of available bandwidth is unregulated and free of electromagnetic interference (EMI). The growing infrastructure of LED lighting offers a particular opportunity for visible light communications (VLC) with power-efficient dual-use sources, which provide simultaneous illumination and very high rate wireless data transmission [1][2][3][4][5]. While VLC data links normally use photodiode (PD) receivers [5] (either positive-intrinsic-negative (PIN) PDs or avalanche PDs), there is a parallel opportunity for duality by using instead a solar cell for simultaneous energy harvesting and data detection. Wang et al. recently showed that a standard commercial multi-crystalline silicon solar panel could be used for this dual purpose, to receive a data-rate of 11.84 Mbps while generating approximately 2 mW of electrical power [6,7]. This advance implies that it could be possible for any piece of electronic equipment with an integrated solar cell to engage in highspeed data communication while utilising the energy from the light signal or ambient lighting to power the receiver electronics.However, to unlock the full potential of this approach it would be very attractive to use an alternative solar cell technology that could be more easily integrated on different devices/substrates, or even be mechanically flexible. The field of organic electronics offers these possibilities, and here we report the first use of an organic semiconductor solar cell as the energy-harvesting receiver in an optical wireless data link. When the cell generates maximum power, the communication link is capable of delivering a data-rate of 34.2 Mbps with a bit error rate (BER) of 4.08 × 10 -4 using an implementation of orthogonal frequency division multiplexing (OFDM). Such organic solar cells could serve as a future platform for ubiquitous VLC receivers. They can be mass manufactured by roll-to-roll printing on a flexible foil [8], giving the possibility of very inexpensive flexible/conformal panels which could be integrated with an extremely wide range of devices. They offer relatively easy bandgap tuning through the visible which could allow a selective response to wavelengt...

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Indoor optical wireless communication: potential and state-of-the-art

Cited by 1,108 publications

References 10 publications

Low-SNR Asymptotic Capacity of MIMO Optical Intensity Channels with Peak and Average Constraints

Low-SNR Asymptotic Capacity of MIMO Optical Intensity Channels with Peak and Average Constraints

Optimization of Visible-Light Optical Wireless Systems: Network-Centric Versus User-Centric Designs

Organic solar cells as high-speed data detectors for visible light communication

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