Chinese Optics Letters, Volume. 15, Issue 8, 080601(2017)
Bandwidth-efficient visible light communication system based on faster-than-Nyquist pre-coded CAP modulation
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Fig. 1. (Color online) Principle diagram of the differential FTN pre-coding scheme.
Fig. 3. (Color online) Measured BER versus system baud rate of the single-band CAP4 and CAP16W and with/without (W/O) FTN.
Fig. 4. (Color online) Measured BER versus subband overlaps of the (a) two-band CAP4 and (b) two-band CAP16W and W/O FTN.
Fig. 5. (Color online) Measured signal spectrum of the two-band CAP16 (a) W/O and (b) W FTN at 10% subband overlap.
Fig. 6. (Color online) Measured BER versus system baud rate of the (a) two-band CAP4 and (b) two-band CAP16W and W/O FTN.
Fig. 7. Measured system baud rate versus overlap of the (a) two-band CAP4 and (b) two-band CAP16 with FTN.
Table 1. Computation Complexity of Each Step
View tableView in ArticleTable 1. Computation Complexity of Each Step
Operation Multiply Plus Sum Differential coding 0 2 N 2 N FTN coding 0 N N Decoding 0 N N Conventional CAP FTN-CAP
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Nan Chi, Jiaqi Zhao, Zhixin Wang, "Bandwidth-efficient visible light communication system based on faster-than-Nyquist pre-coded CAP modulation," Chin. Opt. Lett. 15, 080601 (2017)
Paper Information
Category: Fiber Optics and Optical Communications
Received: Feb. 20, 2017
Accepted: Apr. 14, 2017
Published Online: Jul. 20, 2018
The Author Email: Nan Chi (nanchi@fudan.edu.cn)
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