A 12-m 2.5-Gb/s Lighting Compatible Integrated Receiver for OOK Visible Light Communication Links

Fahs, Bassem; Chowdhury, Asif; Hella, Mona M.

doi:10.1109/jlt.2016.2587598

Cited by 39 publications

(17 citation statements)

References 30 publications

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“…With 230 pJ/b at best performance, we prove the highest power efficiency of SPAD RXs published to-date [6,10,11]. Although the RX energy per bit is not lower than PD/APD RXs (ranging from 86 pJ/b in [1] to 129 pJ/b [3]), these do not include an ADC function, which is inherently realized by this SPAD RX architecture. Our value of 230 pJ/b could readily be reduced by over an order of magnitude by adopting advanced CMOS nodes.…”

Section: Introductionmentioning

confidence: 80%

Distortion losses of high-speed single-photon avalanche diode optical receivers approaching quantum sensitivity

Kosman

Moore

Haas

et al. 2020

Phil. Trans. R. Soc. A.

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The high internal gain of single-photon avalanche diodes (SPADs) operating in Geiger mode allows the quantum limit of detection to be approached. This offers a significantly improved sensitivity for optical communication over existing photodiodes. A fully integrated CMOS SPAD array receiver (RX) is presented which achieves 500 Mb s −1 four-level pulse amplitude modulation in a visible light communication link within 15.2 dB of the quantum limit. However, SPAD dead time induces around 5.7 dB of transient distortion which restricts error performance and data rate. We propose a model describing a discrete photon counting system which exhibits this nonlinear behaviour and compare it to practical measurements with the RX. A unipolar intensity modulated optical signal is considered, as opposed to bipolar electric fields in conventional radio frequency wireless systems. Intermodulation between the DC and harmonic components of the data-carrying waveform is investigated, and the resulting degradation of signal-to-noise-and-distortion ratio and bit error rate is evaluated. The model is developed as a tool for understanding distortion to ultimately allow rectification through RX architecture, modulation scheme, coding and equalization techniques. This article is part of the theme issue ‘Optical wireless communication’.

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Section: Introductionmentioning

confidence: 80%

Distortion losses of high-speed single-photon avalanche diode optical receivers approaching quantum sensitivity

Kosman

Moore

Haas

et al. 2020

Phil. Trans. R. Soc. A.

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“…For the numerical results, the bandwidth limitation is taken into account. We mainly consider the bandwidth limitation from LEDs since the PD’s bandwidth can be much broader compared with the symbol rate tested in this paper [37,38]. The numerical results illustrated in this paper are based on the theory discussed above.…”

Section: Numerical Resultsmentioning

confidence: 99%

Orthogonal Frequency Division Multiplexing Techniques Comparison for Underwater Optical Wireless Communication Systems

Lian

Gao

et al. 2019

Sensors

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Optical wireless communication is an energy-efficient and cost-effective solution for high-speed and highly-secure wireless connections. In this paper, we compare, discuss, and analyze three popular optical orthogonal frequency division multiplexing (OFDM) techniques, such as DC-biased optical OFDM (DCO-OFDM), asymmetrically-clipped optical OFDM (ACO-OFDM), and unipolar OFDM (U-OFDM), for underwater optical wireless communication systems. The peak power constraint, bandwidth limit of the light source, turbulence fading underwater channel, and the channel estimation error are taken into account. To maximize the achievable data propagation distance, we propose to optimize the modulation index that controls the signal magnitude, and a bitloading algorithm is applied. This optimization process trades off the clipping distortion caused by the peak power constraint and the signal to noise ratio (SNR). The SNR and clipping effects of the three compared OFDM techniques are modeled in this paper. From the numerical results, DCO-OFDM outperforms ACO- and U-OFDM when the transmitted bit rate is high compared to the channel bandwidth. Otherwise, U-OFDM can provide a longer propagation distance or requires less transmitted power.

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“…To further improve the performance of PPM, modulation schemes such as trace-orthogonal PPM-space time block coding, expurgated PPM, and multiple pulse PPM codes have been proposed [29][30][31][32]. However, since PPM requires highly accurate synchronization and a large bandwidth, amplitude modulations, such as M-ary pulse amplitude modulation (M-PAM), have been proposed for VLC to achieve a higher spectral efficiency [33][34][35][36][37][38][39].…”

Section: Literature Reviewmentioning

confidence: 99%

“…For IM/DD systems, on-off keying (OOK) is a classical modulation scheme [33][34][35]. However, a high throughput is often required when transmitting a large amount of data, and OOK-modulated LEDs cannot support high-speed demands.…”

Section: Physical Layer Algorithm Design For Vlcmentioning

confidence: 99%

Indoor visible light communications, networking, and applications

et al. 2019

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Light-emitting diodes (LEDs) are changing indoor wireless communications. Visible light communications (VLC) that use LEDs as transmitters is an emerging research area and has significant commercial potential. The light emitted from LEDs can simultaneously carry information and provide illumination. Due to the intrinsic characteristics of light, VLC is more secure, more power efficient, and can provide higher network data transmission rates than radio frequency communications. This paper describes state-of-the-art VLC systems including transmitters, receivers, and channel models. Modulation and networking algorithms for physical layer and cross-layer designs are discussed. These algorithms are designed considering practical constraints, such as the bandlimited channel, illumination requirements, and transmitted power limitations. Indoor localization algorithms are proposed, with a particular focus on fingerprinting. In addition, this paper introduces practical applications of VLC in many fields such as national defense, healthcare, robotics, and vehicle-tovehicle communications. The paper concludes with a discussion of the challenges, opportunities, and future of VLC. Nomenclature ACO-OFDM asymmetrically clipped optical OFDM APD avalanche photodiode BER bit error rate CDMA code division multiple access CEO-OFDM clipping-enhanced optical OFDM DCO-OFDM DC-biased optical OFDM HCM Hadamard coded modulation IoT internet of things JOW joint optimal waveform LED light-emitting diodes LOS line-of-sight MAI multiple access interference MIMO multiple input multiple output NLOS non-line-of-sight OCDMA optical code division multiple access OFDM orthogonal frequency division multiplexing OOC optical orthogonal code OPEN ACCESS RECEIVED

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A 12-m 2.5-Gb/s Lighting Compatible Integrated Receiver for OOK Visible Light Communication Links

Cited by 39 publications

References 30 publications

Distortion losses of high-speed single-photon avalanche diode optical receivers approaching quantum sensitivity

Distortion losses of high-speed single-photon avalanche diode optical receivers approaching quantum sensitivity

Orthogonal Frequency Division Multiplexing Techniques Comparison for Underwater Optical Wireless Communication Systems

Indoor visible light communications, networking, and applications

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