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<p>Quantization noise caused by analog-to-digital converter (ADC) gives rise to the reliability performance degradation of communication systems. In this paper, a quantized non-Hermitian symmetry (NHS) orthogonal frequency-division multiplexing-based visible light communication (OFDM-VLC) system is presented. In order to analyze the effect of the resolution of ADC on NHS OFDM-VLC, a quantized mathematical model of NHS OFDM-VLC is established. Based on the proposed quantized model, a closed-form bit error rate (<i>BER</i>) expression is derived. The theoretical analysis and simulation results both confirm the effectiveness of the obtained <i>BER</i> formula in high-resolution ADC. In addition, channel coding is helpful in compensating for the <i>BER</i> performance loss due to the utilization of lower resolution ADC.</p>

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BER performance analysis of non-Hermitian symmetry OFDM-VLC systems with ADC quantization noise

  • 期刊论文

  • 发表日期：

    2025年10月24日

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  • Zhongpeng Wang,
  • Caihua Ai,
  • Lijuan Zhang

摘要

Quantization noise caused by analog-to-digital converter (ADC) gives rise to the reliability performance degradation of communication systems. In this paper, a quantized non-Hermitian symmetry (NHS) orthogonal frequency-division multiplexing-based visible light communication (OFDM-VLC) system is presented. In order to analyze the effect of the resolution of ADC on NHS OFDM-VLC, a quantized mathematical model of NHS OFDM-VLC is established. Based on the proposed quantized model, a closed-form bit error rate (BER) expression is derived. The theoretical analysis and simulation results both confirm the effectiveness of the obtained BER formula in high-resolution ADC. In addition, channel coding is helpful in compensating for the BER performance loss due to the utilization of lower resolution ADC.