Security enhancement of an integrated mode division multiplexed VLC system using two-dimensional WMZCC codes

Kaur, Harleen; Grewal, Narwant Singh

doi:10.1007/s12596-023-01216-8

Cited by 2 publications

(1 citation statement)

References 39 publications

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“…Right and left circular polarization states can be formed when the electrical field vector in an electromagnetic wave rotates in either a clockwise or in anti-clockwise direction. A five-user and 100 Gbps per user weight managed OCDMA code was tested over a 5 m VLC link using Laguerre-Gaussian (LG) and Hermite Gaussian (HG) modes (Kaur et al 2023). An ultra-high capacity 160 Gbps and 22 m VLC link was presented using QPSK ( b Kaur 2022).…”

Section: Introductionmentioning

confidence: 99%

WITHDRAWN: Circular Polarization Division Multiplexing in Visible Light Communication System by Incorporating QPSK and Distortion Compensation Enabled DSP/IDSP

Pahuja,

Verma,

Sachdeva

et al. 2023

Preprint

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Hybrid polarization division multiplexing (PDM) and Visible Light Communication (VLC) have fostered speedy data transmission in the last few years and emerged as the strong candidate that enables users to leverage the pervasive illumination/communication infrastructure. Circular PDM (CPDM) is replacing the linear PDM (LPDM) variant in wired/wireless systems due to the even scattered light distributions and elimination of polarization axis alignment requirements. In this research work, a 1.6 Tbps multi-wavelength line of sight (LoS) based VLC system is presented and data modulation is performed by employing Quadrature phase shift keying (QPSK). The conventional DSP algorithms such as Viterbi Phase Estimation (VPE), Blind Phase Search (BPS), and Constant Modulus Algorithm (CMA) algorithms are replaced with Gram-Schmidt orthogonalization procedure (GSOP), time-domain equalization algorithm (TEDA), improved Viterbi algorithm (IVA), and least mean square (LMS) algorithm in proposed IDSP. Three different systems are compared such as LPDM-VLC-DSP, CPDM-VLC-DSP, and CPDM-VLC-IDSP at different VLC link ranges, transmitter half angles (THA), incidence half angles (IHA), and optical concentrator areas (OCAs) in terms of error vector magnitude percentage (EVM%), log symbol error rate (log SER), and Q factor. After doing the extensive comprehensive literature survey, it is discerned that the presented CPDM-VLC-IDSP system has covered the longest distance i.e. 14 cm at 1.6 Tbps capacity under the acceptable bit error rate (BER) limits.

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Section: Introductionmentioning

confidence: 99%