Chinese Optics Letters, Volume. 15, Issue 3, 030602(2017)
Carrier-less amplitude and phase modulated visible light communication system based on a constellation-shaping scheme
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Fig. 3. Experimental setup of the VLC system employing constellation-shaping CAP and CMMA.
Fig. 4. Measured BER of CAP-32 versus different input signal Vpps at Vleds equal 3.5 and 1.9 V. (a) Constellation of normal QAM-32. (b) Constellation of shaping QAM-32.
Fig. 5. Measured BER of CAP-32 and CAP-16 versus different input signal Vpps at a Vled equal 3.5 V. (a) CAP-16, (b) shaping CAP-16, (c) CAP-32, and (d) shaping CAP-32.
Fig. 6. Measured BER performance and working range of CAP-32 versus different Vleds and Vpps (a,c) without constellation shaping, and (b,d) with constellation shaping.
Table 1. Differences Between Ref. [14] and Our Report
View tableView in ArticleTable 1. Differences Between Ref. [14] and Our Report
Items Ref. [ 14 ]Proposed QAM order 8-QAM 32-QAM Modulation formats Single carrier CAP Constellation generation Regular polygon design Geometric transformation Experiment Yes Yes Distance 0.5 m (in door) 1 m (in door) Comparing group Four 8-QAM constellations Two 32-QAM constellations
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Zhixin Wang, Mengjie Zhang, Siyuan Chen, Nan Chi, "Carrier-less amplitude and phase modulated visible light communication system based on a constellation-shaping scheme," Chin. Opt. Lett. 15, 030602 (2017)
Paper Information
Category: Fiber Optics and Optical Communications
Received: Jul. 3, 2016
Accepted: Dec. 23, 2016
Published Online: Jul. 25, 2018
The Author Email: Nan Chi (nanchi@fudan.edu.cn)
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