Design of a 2.2-mW 24-Mb/s CMOS VLC Receiver SoC With Ambient Light Rejection and Post-Equalization for Li-Fi Applications

Li, Xianbo; Hussain, Babar; Wang, Li; Jiang, Junmin; Yue, C. Patrick

doi:10.1109/jlt.2018.2813302

Cited by 40 publications

(19 citation statements)

References 27 publications

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“…Visible light communication systems are constructed in [1,2]. In particular, the system-on-a-chip (SoC) of [1] implemented the ambient light rejection (ALR) function by filtering out ambient light at lower communication frequencies than the signal by computer simulations.…”

Section: Spectrums Of Photoluminescence Of Nanomaterials and Phosphormentioning

confidence: 99%

“…Thus the performances of such systems are highly limited because of the phosphorescence delay of white LEDs. For instance, [2] achieved a maximum speed of 24 Mbps with CLA1B-WKW-XD0F0E23 phosphorescence based white light. The rising time and falling time of 200 ns for 20 Mbps transmission, before applying equalizer, was reported indicating a certain amount of switching time is required for such kind of LEDs, taking photoluminescence delay time and circuit response time into account.…”

Section: Introductionmentioning

confidence: 99%

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53‐3: CdSe/CdS Nanorod Enhancement Film for Blue‐Laser Based Visible Light Communication Systems

Cheng

Kang

Gupta

et al. 2020

Symp Digest of Tech Papers

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Section: Spectrums Of Photoluminescence Of Nanomaterials and Phosphormentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

53‐3: CdSe/CdS Nanorod Enhancement Film for Blue‐Laser Based Visible Light Communication Systems

Cheng

Kang

Gupta

et al. 2020

Symp Digest of Tech Papers

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“…Li, X., Hussain, B., Wang, L., Jiang, J. and Yue, C.P [19] introduced the energy efficient VLC receiver system-on-a-chip (SoC). This VLC system uses the post-equalization techniques and Ambient Light Rejection (ALR) in light fidelity applications.…”

Section: A Sallen Key All Pass Filter For Noise Reduction In Visible mentioning

confidence: 99%

A Sallen Key All Pass Filter for Noise Reduction in Visible Light Communication Systems

2019

ijeat

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Visible-light communication (VLC) uses a solid-state illumination device for generating high speed communication links. VLC is used throughout world for eliminating the shortage of wireless spectrum resources. The VLC is generally an Optical Wireless Communication (OWC) method and this uses the Light Emitting Diode (LED) for data transmission through the optical wireless channel. The data transmission though the VLC is affected by ambient light interference due to the environment. In this paper, an efficient filter is designed to eliminate the ambient light noises from the received signal. The filter used in the VLC system is Sallen key All Pass Filter (APF) and the red LED and Photo detector (PD) is used in the transmitter and receiver respectively. The Sallen key APF contains three different filter structures such as low pass, band pass and high pass filter. The Sallen APF uses the filter process with respect to the noise. This proposed system is implemented in two different tools namely MATLAB and Electric VLSI. The performance of the proposed system is analyzed in terms of Bit Error Rate (BER), area, power consumption and data rate.

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“…To detect the emitted optical signal from a smart display, different receivers can be employed, including a photodiode (PD)-based receiver and a smartphone camera-based receiver equipped with a CMOS image sensor (CIS) [11]- [14]. Usually, a low-cost PD is already sufficient to achieve a communication data rate up to tens of Mb/s [12], [13], but it requires a custom-designed receiver. In contrast, due to the low frame rate of smartphone cameras (typically 30 fps), the achievable communication data rate is limited to tens of kb/s even when taking advantage of the rolling shutter effect [5], [6], [15].…”

Section: Introductionmentioning

confidence: 99%

Smart μLED Display-VLC System With a PD-Based/Camera-Based Receiver for NFC Applications

Hussain

Kang

et al. 2019

IEEE Photonics J.

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This paper presents a smart micro-light-emitting-diode (μLED) display system employing visible light communication (VLC) as the near-field communication technology for portable devices equipped with μLED displays. In the transmitter, a VLC modulator is integrated into a 400 × 240 gallium nitride (GaN) μLED display with a pixel size of 30 × 30 μm 2 to enable simultaneous display and VLC functions. In the receiver, two different configurations are implemented, including a photodiode (PD)-based and a smartphone camera-based receiver. The smart μLED display-VLC system with the two different receivers is characterized by varying the distance and the angle between the transmitter and the receiver. Experimental results show that the PD-based system can achieve a bit rate of 2 Mb/s and a maximum overall data rate of 550 kb/s beyond 10 cm, but it is sensitive to angular misalignment. In contrast, the camera-based system is more suitable for the transmission of short pieces of information at a bit rate of 16.6 kb/s, and the maximum overall data rate is 5 kb/s at a distance of 5 cm (and 2.5 kb/s when the distance is extended to 10 cm). Moreover, the camera-based system is less sensitive to angular misalignment.

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Design of a 2.2-mW 24-Mb/s CMOS VLC Receiver SoC With Ambient Light Rejection and Post-Equalization for Li-Fi Applications

Cited by 40 publications

References 27 publications

53‐3: CdSe/CdS Nanorod Enhancement Film for Blue‐Laser Based Visible Light Communication Systems

53‐3: CdSe/CdS Nanorod Enhancement Film for Blue‐Laser Based Visible Light Communication Systems

A Sallen Key All Pass Filter for Noise Reduction in Visible Light Communication Systems

Smart μLED Display-VLC System With a PD-Based/Camera-Based Receiver for NFC Applications

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