<scp>BER</scp> performance of <scp>MIMO</scp> based <scp>NOMA‐VLC</scp> system with imperfect <scp>SIC</scp>

Dixit, Vipul; Kumar, Atul

doi:10.1002/ett.4422

Cited by 10 publications

(1 citation statement)

References 23 publications

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“…The line-of-sight (LOS) link with lambertian pattern is considered in this paper for information transmission. The LOS channel impulse response (CIR) or the channel DC gain between kth transmitting node and lth receiving node is given by [20,21]…”

Section: Channel Modelmentioning

confidence: 99%

Cooperative VLC system using OOK modulation with imperfect CSI

Dwivedy¹,

Dixit²,

Kumar³

2023

Phys. Scr.

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Visible light communication (VLC) is one of the aspirant tools for high data rate communication. VLC system employed in a large room requires cooperative transmission for reliable end-to-end communication. Cooperative communication (CC) utilizes several relay approaches to forward the message from transmitter to envisioned destination, and thus, attains high spatial diversity gain, reduced power consumption, improved transmission reliability, increased coverage area, and potentially enhanced system capacity. This paper investigates the error performance of on-off keying (OOK) modulated VLC system in a cooperative environment, where the relay adopts decode-and-forward (DF) protocol. In particular, two cases of cooperative VLC system are considered; 1) Case I, in which the destination node is in direct link with the previous node while in blockage or outside the field of view (FoV) for all the other nodes, 2) Case II, in which the destination node is in direct link with all upstream nodes. For the practical suitability of the system, the imperfect channel state information (CSI) is considered for performance analysis. The mathematical expressions for bit-error-rate (BER) of the considered systems are derived in the presence of perfect and imperfect CSI. The error performance of the considered systems is investigated for the various system parameters such as signal-to-noise ratio (SNR), channel estimation error and receiver locations. The result shows that for the case of blockage, i.e., Case I, the end-to-end communication for two-hop network can be established with the BER of 2×10<−4> at 128 dB SNR and channel estimation error of 10<−12>. Further, in the case of non-blockage, i.e., Case II, the result shows that for two-hop communication, the BER in cooperative transmission improved to 5×10<−5> in compare to 5×10<−2> in direct communication, at 128 dB SNR and 10<−12> channel estimation error. The extensive simulations are carried out to verify the analytical findings.

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Section: Channel Modelmentioning

confidence: 99%

Cooperative VLC system using OOK modulation with imperfect CSI

Dwivedy¹,

Dixit²,

Kumar³

2023

Phys. Scr.

Self Cite

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Deep learning based BER improvement for NOMA-VLC systems with perfect and imperfect successive interference cancellation

Salama

Aly

Amer³

2023

Opt Quant Electron

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This paper focuses in the improvement of the BER performance of multiple-input multiple-output (MIMO) systems is investigated utilizing non-orthogonal multiple access-visible light communication (NOMA-VLC). Applying multi-user downlink MIMO-NOMA-VLC system within equal gain combiner at the receiver is used with two types of modulation; On–Off Keying (OOK) and L-Pulse Position Modulation, with L = 4 and 8. The perfect and imperfect successive interference cancellation scenario is used in this system, and the scenario is considered for two and three users. Our proposed framework is divided into two stages. First, data is collected using the MATLAB software. Second, two deep learning models (DLMs); ResNet50V2 and InceptionResNetV2 which are trained and tested. Python software is then used to develop and train the DLMs. The obtained results assures the superiority of ResNet50V2 over InceptionResNetV2, in different cases and for all users. The BER performance is also studied versus α for two and three users OOK modulation single-input single-output (SISO), (2 × 2) and (3 × 2) MIMO-NOMA-VLC systems based on the two DL techniques; ResNet50V2 and InceptionResNetV2. Again, ResNet50V2 achieves better results than InceptionResNetV2. The obtained results are compared with the previously published ones, showing that the proposed system and techniques achieve better results.

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Three layer hybrid PAPR reduction method for NOMA-based FBMC-VLC networks

Hassan

2024

Opt Quant Electron

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BER performance of MIMO based NOMA‐VLC system with imperfect SIC

Cited by 10 publications

References 23 publications

Cooperative VLC system using OOK modulation with imperfect CSI

Cooperative VLC system using OOK modulation with imperfect CSI

Deep learning based BER improvement for NOMA-VLC systems with perfect and imperfect successive interference cancellation

Three layer hybrid PAPR reduction method for NOMA-based FBMC-VLC networks

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