A New Demodulator For Inverse Pulse Position Modulation Technique
Inverse pulse position modulation is one of the modulation techniques for Visible Light Communication (VLC) systems. In this paper, a new demodulator scheme, which is named as Slot Period Detector (SPD), is proposed by using frequency detection technique. The proposed architecture computes the period time for each slot. Thanks to SPD technique, the complexity of I-PPM receiver is dramatically reduced. However, the traditional receiver has a good Bit Error Rate (BER) performance than that of proposed SPD structure. The SPD is implemented on Field Programmable Gate Arrays (FPGA) board to demonstrate applicable receiver
I-PPM, Demodulator, Visible light communication
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