• Study On Optical Communications
  • Vol. 46, Issue 1, 1 (2020)
ZHANG Qi, YUE Dian-wu*, and HAN Yu
Author Affiliations
  • [in Chinese]
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    DOI: 10.13756/j.gtxyj.2020.01.001 Cite this Article
    ZHANG Qi, YUE Dian-wu, HAN Yu. Optimization Design and Performance Analysis of Receiver in Visible Light Communication System[J]. Study On Optical Communications, 2020, 46(1): 1 Copy Citation Text show less

    Abstract

    In this paper, an Angle Diversity Optical Receiver Using Two Types of Photo Diodes (PD) with Different Field of View (2FOV-ADR) is designed in an indoor multi-cell Visible Light Communication (VLC) system. It further optimizes the parameters of the receiver with the goal of maximizing Area Spectral Efficiency (ASE), including the elevation angle of the receiver PD and the combination method adopted. Four combination schemes are considered, namely Equal Gain Combining (EGC), Select Best Combining (SBC), Maximum Ratio Combining (MRC), Minimum Mean Square Error (MMSE) combining. In comparison, the indoor Signal to Interference and Noise Ratio (SINR) distribution and ASE performance of Single PD Receiver (SR) and traditional Angle Diversity Receiver (ADR) are also simulated. It is found that 2FOV-ADR greatly improves the indoor SINR distribution. Compared with the single PD receiver and the conventional ADR, the SINR at the cell edge position is improved by 30 and 20 dB, respectively, and the 2FOV-ADR has the highest ASE at different user numbers. Therefore, 2FOV-ADR can achieve better performance than single PD receivers and traditional angle diversity receivers.
    ZHANG Qi, YUE Dian-wu, HAN Yu. Optimization Design and Performance Analysis of Receiver in Visible Light Communication System[J]. Study On Optical Communications, 2020, 46(1): 1
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