Subband Index Carrierless Amplitude and Phase Modulation for Optical Communications

Subband index carrierless amplitude and phase modulation (SI-CAP) is proposed and investigated in this paper to improve the performance of multi-band CAP (m -CAP). The bit-error-rate (BER) analysis of the proposed SI-CAP is derived and verified through computer simulations. A detection scheme is als...

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Bibliographic Details
Published in:Journal of lightwave technology 2018-09, Vol.36 (18), p.4190-4197
Main Authors: Akande, Kabiru O., Popoola, Wasiu O.
Format: Article
Language:English
Subjects:
adaptive equalization
Adaptive systems
Amplitudes
Complexity
Complexity theory
Computer simulation
Detectors
Equalization
Error analysis
Fiber optic communications
index modulation (IM)
Indexes
Light emitting diodes
Multi-band carrierless amplitude and phase modulation (m-CAP)
Optical communication
Optical fiber communication
Performance enhancement
Phase modulation
step-index plastic optical fibre (SI-POF)
visible light communication (VLC)
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Summary:Subband index carrierless amplitude and phase modulation (SI-CAP) is proposed and investigated in this paper to improve the performance of multi-band CAP (m -CAP). The bit-error-rate (BER) analysis of the proposed SI-CAP is derived and verified through computer simulations. A detection scheme is also developed for SI-CAP, which achieves maximum likelihood performance at a significantly lower complexity. In addition, an experimental demonstration of the proposed SI-CAP is carried out for optical communication systems. Furthermore, an adaptive equalization technique is implemented to further enhance the performance gain of SI-CAP. It is shown that for the same order of complexity, the SI-CAP exhibits higher spectral and energy efficiency in comparison to m-CAP. Therefore, the performance gain of SI-CAP along with its design flexibility make it a suitable candidate for optical communication systems.
ISSN:0733-8724
1558-2213
DOI:10.1109/JLT.2018.2859818