M-Point Combinatory for Parallel Transmission Image Sensor-Based Visible Light Communications
M-Point Combinatory for Parallel Transmission Image Sensor-Based Visible Light Communications
复制标题
用于基于并行传输图像传感器的可见光通信的 M 点组合
DOI：
10.1109/jlt.2022.3218071
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发表时间：
2023
期刊：
影响因子：
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通讯作者：
Takaya Yamazato
中科院分区：
文献类型：
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作者：
Takumi Sato;Koji Kamakura;Masayuki Kinoshita;Takaya Yamazato
提出了一种用于基于并行传输图像传感器的可见光通信的三点组合调制方式.在传统的PT系统中，空间频率的离散信号与液晶显示器（LCD）的传输区域并行传输。当每个空间频率用相移键控（-PSK）调制时，当空间频率的数目增加时，在一帧中发送的比特的数目由比特给出，但同时，峰均功率比（PAPR）变高，因为PT系统的信号本质上是正交频率调制，从而保持在系统无任何误差地适应的非常低数量的空间频率。在本文中，我们提出了MC调制，这是结合PT系统，以增加每帧的比特数，系统进行没有任何错误。在MC PT系统中，发射区用于发射与点DFT相关的离散信号，其中。因为有很多方法可以把它们映射成比特。在additionbits中，每帧的总位数为bits。根据比特数为一帧选择发射区，然后用所选发射区发射带比特的PT系统的离散信号。我们的实验结果表明，我们提出的MC PT系统与8-PSK达到697位每帧保持没有错误被观察到，而传统的PT系统只有180位每帧。
-point combinatory (MC) modulation is proposed for parallel transmission (PT) image sensor (IS)-based visible light communication (VLC). In the conventional PT system,discrete signals which incorporatespatial frequencies are transmitted in parallel withtransmitting regions of liquid crystal display (LCD). When each of spatial frequencies is modulated with-ary phase shift keying (-PSK), the number of bits transmitted in one frame is given bybits.increases when the number of spatial frequenciesincreases with, but at the same time, the peak-to-average power ratio (PAPR) becomes high because the signal of the PT system is essentially orthogonal frequency modulation, thus remaining at a very low number of spatial frequenciesthat the system accommodates without any error. In this paper, we propose MC modulation, which is combined with the PT system to increase the number of bits per frame that the system carries without any error. In the MC PT system,out of thetransmitting regions are used for transmittingdiscrete signals related to-point DFT, where. Since there areways in choosingout of theones, we map them tobits. In additionbits, the total number of bits per frame isbits. According tobits,transmitting regions are chosen for a frame, and then thechosen ones are used to transmitdiscrete signals of the PT system which carriesbits. Our experimental results show that our proposed MC PT system with 8-PSK achieves 697 bits per frame with keeping no error being observed, while the conventional PT system does only 180 bits per frame.