Hybrid time–frequency domain equalization based on sign–sign joint decision multimodulus algorithm for 6×6 mode division multiplexing system
Hybrid time–frequency domain equalization based on sign–sign joint decision multimodulus algorithm for 6×6 mode division multiplexing system
复制标题
DOI：
10.1016/j.optcom.2017.08.008
复制
发表时间：
2018-02
影响因子：
2.4
通讯作者：
L. Jiao;Guijun Hu;Caili Gong;Li Li-Li
中科院分区：
文献类型：
--
作者：
L. Jiao;Guijun Hu;Caili Gong;Li Li-Li
在本文中，我们提出了一种混合时频域符号-符号联合决策多模算法（hybrid - sjdmma），用于高阶QAM调制的6x6模分复用（MDM）系统的模式解复用。对hybrid - sjdmma的均衡性能进行了评价，并与频域多模算法（FD-MMA）和混合时频域符号-符号多模算法（hybrid - smma）进行了比较。仿真结果表明，Hybrid-SJDMMA的计算复杂度明显低于FD-MMA，收敛速度与FD-MMA相近。此外，Hybrid-SJDMMA在16 QAM和64 QAM下的误码率性能明显优于FD-MMA和Hybrid-SMMA。
In this paper, we propose a hybrid time–frequency domain sign–sign joint decision multimodulus algorithm (Hybrid-SJDMMA) for mode-demultiplexing in a 6× 6 mode division multiplexing (MDM) system with high-order QAM modulation. The equalization performance of Hybrid-SJDMMA was evaluated and compared with the frequency domain multimodulus algorithm (FD-MMA) and the hybrid time–frequency domain sign–sign multimodulus algorithm (Hybrid-SMMA). Simulation results revealed that Hybrid-SJDMMA exhibits a significantly lower computational complexity than FD-MMA, and its convergence speed is similar to that of FD-MMA. Additionally, the bit-error-rate performance of Hybrid-SJDMMA was obviously better than FD-MMA and Hybrid-SMMA for 16 QAM and 64 QAM.