Miaofeng Li, Xiang Li, Chao Yang, Qi Yang, Shaohua Yu. Experimental demonstration of indoor interfered visible light communication system employing successive interference cancellation[J]. Chinese Optics Letters, 2017, 15(5): 050604
- Chinese Optics Letters
- Vol. 15, Issue 5, 050604 (2017)
Fig. 1. Practical scheme utilizing multiple LEDs to achieve full-range illumination and VLC.
Fig. 2. Sub-band mapping with (a) localized and (b) interleaved schemes.
Fig. 3. DSP schemes at the receiver side for (a) CCE and (b) QR-CE.
Fig. 4. Experimental setup of the 2 m free-space VLC system with delay-line interference. OSC: oscilloscope; LPF: low-pass filter[11,12].
Fig. 5. Measured channel response of the signal under various (a) relative delays with power ratio of one and (b) power ratios with a relative delay of 3 m.
Fig. 6. BER performances of the DFT-S OFDM signal with QR-CE and CCE, and a normal OFDM versus (a) relative delays at power ratio of one and (b) power ratios at a relative delay of 3 m under different sub-band mapping schemes.
Fig. 7. BER performances of the QR-CE with (a) a different number of sub-bands and (b) a different number of pilots for the QR-CE.
Fig. 8. Complementary cumulative distribution function (CCDF) versus PAPR for a normal and DFT-S OFDM with a different number of sub-bands, respectively.
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