Abstract
A new technique, which can increase the data rate in optical orthogonal frequency division multiplexed access link, is proposed in this paper. An adaptive sampling based on a compressive sensing (CS) technique is implemented in order to save channel bandwidth. The CS tells us that all signals with high sparsity, which is sampled below the Nyquist/Shannon limit, can be reconstructed successively using sufficient measurement. In this paper, it is reported that the compression ratio of 40 % is observed within the error free optical transmission (FEC limit: BER of 10−3) in case of QPSK symbols. It means that its data rate can be increased by 1.7 times (from 1.56 to 2.3 Gbps) using the proposed technique without the use of optical and electrical devices with higher physical bandwidth.
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Acknowledgments
S.-M. Jung, and S.-K. Han were supported by the ICT R&D program of MSIP/IITP, Republic of Korea [B0101-15-1276, Access Network Control Techniques for Various IoT Services]. Y.-Y. Won, and S. M. Yoon were supported by the ICT R&D program of MSIP/IITP, Republic of Korea [B0101-15-1347]. S. M. Yoon was also supported by Basic Science Research Program through the National Research Foundation of Korea (NRF) funded by the Ministry of Science, ICT & Future Planning (NRF-2014R1A1A1002890).
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Won, YY., Jung, SM., Han, SK. et al. Improvement of transmission capacity in optical orthogonal frequency division multiplexed access link using an adaptive sampling and L1-minimization based on compressive sensing. Opt Quant Electron 47, 3117–3126 (2015). https://doi.org/10.1007/s11082-015-0200-8
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DOI: https://doi.org/10.1007/s11082-015-0200-8