Application of Micro‐LED in Visible Light Communication

Zhao, Chenxi; Li, Weizeng; Yan, Gewei; Liu, Zhaojun

doi:10.1002/sdtp.13767

Cited by 1 publication

(2 citation statements)

References 7 publications

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“…For these proposed models, the fitting error with respect to R-squared value is shown in Figure 8, from which we can see that the minimum value of R-squared for two kinds of LED is 0.988. where S pc is the slope of the PC-LED fitting straight line and S blue is the slope of the B-LED fitting straight-line. By substituting Equations ( 5) and ( 7) into Equation ( 4), the PC-LED bias voltage and amplitude-frequency response model can be obtained, as shown by (9).…”

Section: Polynomial Order Determination In Log-domainmentioning

confidence: 99%

“…To improve the transmission rate of VLC, there are numerical approaches such as high-order modulation format [2], blue light filtering [3], pre-equalization [4], postequalization [5], discrete multitone modulation (DMT) [6,7], optical MIMO [8] and micro-LED array [9,10]. These schemes focus on the energy-efficient designs of x(t) [2,[6][7][8], or improving the time-domain or frequency domain performance of h(t) [3][4][5].…”

Section: Introductionmentioning

confidence: 99%

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Experimental Investigation into the Influence of LED Bias Setup on VLC Frequency Domain Characteristics: Beyond Non-Negativity

Zhang

et al. 2023

Photonics

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Different from the radio frequency bipolar complex signalling, LED-based visible light communication (LED-VLC) meets the non-negativity requirement by adding a bias component (BC) to a bipolar real-valued signal. Although many people know that there is a relationship between BC and LED characteristics, unfortunately, most of them chose to ignore it, and thus there has been little exploration of its impact on VLC. In this paper, we have experimentally measured the frequency domain characteristics of several LEDs commonly used in home and business applications. The numerical calculations show that the logarithmic domain absolute frequency response is approximately linear, where the corresponding intercepts and slopes can be quadratically expressed with respect to BC with a very low fitting error. This experimental investigation reveals that the BC value will remarkably influence the VLC system performance beyond non-negativity, and the LED-VLC transceiver designs should jointly take the BC and LED communication characteristic into consideration.

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Section: Polynomial Order Determination In Log-domainmentioning

confidence: 99%