Abstract
In this paper, the frequency-domain multimodulus blind equalization algorithm (FD-MMA) is proposed to implement mode demultiplexing for a 2 × 2 mode division multiplexing system. The performance of this algorithm is compared with the time-domain MMA (TD-MMA) and frequency-domain decision-directed least mean square algorithm (FD-LMS). Compared with TD-MMA, the FD-MMA reduces the computational complexity significantly while maintaining the same performance. Compared with FD-LMS, the FD-MMA has a better performance in BER with similar computational complexity. As for 16QAM format, the average OSNR of FD-MMA improves 2.5 dB at a BER of 10−3; as for 64QAM, it has an improvement of 7 dB.
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Acknowledgments
This work is supported in part by the National Natural Science Foundation of China (No. 61177066), the Science and Technology Development Plan of Jilin Province (No. 20120761), Jilin Province Development and Reform Commission (2014Y087) and the Science and Technology Development Plan of Jilin Province (20140203009GX). The research is also sponsored by the Scientific Research Foundation for the Returned Overseas Chinese Scholars, State Education Ministry.
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Boran, W., Guijun, H. Demultiplexing based on frequency-domain multimodulus blind equalization for mode division multiplexing system. Opt Quant Electron 48, 21 (2016). https://doi.org/10.1007/s11082-015-0268-1
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DOI: https://doi.org/10.1007/s11082-015-0268-1