Enhancement of Visible Light Communication Transceiver using LDPC Codes

Khalid, Arslan; Ahmad, Mehmood; Khan, Nesruminallah; Ali, Assad

doi:10.1109/fit.2018.00024

Cited by 7 publications

(4 citation statements)

References 23 publications

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“…The testbed includes an array of off‐the‐shelf low‐cost green LEDs ( LXHL‐BM01 ) as a VLC source while silicon PD ( BPW34 ) as a VLC detector. For arbitrarily text communication in one direction, the testbed requires two computers each at transmitter and receiver side . However, text communication can also be consummate in a half‐duplex mode.…”

Section: Testbed Design and Results Analysismentioning

confidence: 99%

Physical deployment of enhanced visible light communication system using forward error correction codes

Khalid

Rashid

Asif

et al. 2019

Int J Communication

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Summary With the development of new generation lighting sources, visible light communication (VLC) system has become a complementary solution to traditional radio frequency wireless system. However, the error performance of VLC system is degraded because of multipath effects and interference from other lighting sources that, in turn, reduce the communication range. This work targets the issue of performance degradation of VLC systems in terms of communication range and demonstrates a VLC system design that utilizes forward error correction (FEC) codes as the main tool to fix this issue. Furthermore, the work also covers practical implementation of the proposed VLC system using UART modules programmed in MATLAB. The hardware results demonstrate that the communication range of the proposed VLC system is enhanced up to 0.5 m. Over and above, it is also shown through simulations that the coding gain of the proposed design is more when compared with existing VLC system(s).

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Section: Testbed Design and Results Analysismentioning

confidence: 99%

Physical deployment of enhanced visible light communication system using forward error correction codes

Khalid

Rashid

Asif

et al. 2019

Int J Communication

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“…Light Emitting Diodes, or commonly referred as LEDs, are polar semiconductors that emit visible light when a forward current is applied [14,15].…”

Section: Light Emitting Diodesmentioning

confidence: 99%

Study of LED Radiation Effects on Insect Phototaxis Response for the Development of Light-Based Pest Trap

Wei Wee,

Then,

Tay

et al. 2021

IJIE

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Commercial agriculture is a resource intensive industry that employs significant amounts of agrochemicals to maintain a high yield output. Excessive application of insecticides has detrimental impacts on human health, environment and long-term sustainability. One particular area of interest is in exploring how insects are attracted to specific bands of the visible light spectrum. This paper details the study of several light conditions using Light Emitting Diodes (LEDs) to determine its phototaxis response on the common grasshopper, garden moth and lava beetle. The results conclude that all three insects exhibit positive phototaxis response on wavelengths around 491nm and below, which encompasses ultraviolet, blue and green. The radiant intensity experiment revealed a threshold response of 2.8mW/m2, or 25m in reciprocal distance.

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“…In another research [10], a CSK-CDMA system is proposed, where two spatially separated LED transmitters are used along with optical filters. It is seen that the system has does not produce white light from the red and green filters, with absence of blue light in the system, and that the LEDs are far apart instead of 2 LEDs in a single package.…”

Section: Introductionmentioning

confidence: 99%

Design and Investigation of RGB-type LED Visible Light Communication System

Hong Tai,

Chiak Kho,

Hii

et al. 2021

IJIE

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This paper examines the feasibility of a Red Green Blue (RGB)-type Light Emitting Diode (LED) Visible Light Communication (VLC) system based on wavelength division multiplexing (WDM). Each color in the RGB-LED is individually modulated to increase the data rate by three times as compared to the single channel modulation approach used in conventional VLC system. Color filters are employed to detect separately the RGB signals at the receiver side. The proposed system utilized a reflector to improve the performance and the system is lens-free. In this work, an approach of approximated WDM testing is adopted due to the incapability of multiplexing by the microcontroller at higher data rate. The proposed system is demonstrated to transmit and receive data at a maximum distance of 1.4m, with total data transmission speed of 345.6 kbps using standard WDM, while a total speed of 1.5 Mbps up to maximum distance of 1.2m and 3 Mbps up to maximum distance of 0.7m is achieved by the approach of approximated WDM testing.

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Enhancement of Visible Light Communication Transceiver using LDPC Codes

Cited by 7 publications

References 23 publications

Physical deployment of enhanced visible light communication system using forward error correction codes

Physical deployment of enhanced visible light communication system using forward error correction codes

Study of LED Radiation Effects on Insect Phototaxis Response for the Development of Light-Based Pest Trap

Design and Investigation of RGB-type LED Visible Light Communication System

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