MIMO均衡下非对齐光子轨道角动量复用通信系统性能研究

量子电子学报

MIMO均衡下非对齐光子轨道角动量复用通信系统性能研究

张文浩，李成，李威，赵生妹?

南京邮电大学信号处理与传输研究院，江苏南京 210003

出版日期:2018-11-28 发布日期:2018-11-14
通讯作者: 赵生妹（1968-），女，博士，教授，博导，主要从事量子信息技术、无线通信与信号处理技术方面的研究。 E-mail:zhaosm@njupt.edu.cn
作者简介:张文浩（1995-），研究生，主要从事量子信息技术、无线通信与信号处理技术方面的研究。
基金资助:
Supported by National Natural Science Foundation of China (国家自然科学基金,61475075,61271238)，Open Research Fund of Key Laboratory of Broadband Wireless Communication and Sensor Network Technology, Ministry of Education of the People's Republic of China(教育部“宽带无线通信与传感网技术”重点实验室开放课题,NYKL2015011)，Postgrauate Research and Practice Innovation Program of Jiangsu Province(江苏省研究生科研与实践创新计划项目,KYCX17_0771)

Performance of misaligned optical orbital angular momentum multiplexing communication system with MIMO equalization

ZHANG Wenhao, LI Cheng, LI Wei, ZHAO Shengmei

Institute of Singnal Processing and Transmission, Nanjing University of Posts and Telecommunications, Nanjing 210003, China

Published:2018-11-28 Online:2018-11-14
Supported by:

摘要/Abstract

摘要： 轨道角动量（Orbital angular momentum，OAM）复用通信系统性能不可避免地受到发、收两端OAM态非对齐的影响。针对OAM态复用通信，提出了一种将多输入多输出(Multiple-input multiple-output，MIMO)均衡技术用于降低OAM系统发、收两端非对齐对系统性能带来影响的方案。所提方案利用MIMO均衡技术纠正或部分纠正复用OAM态在发、收两端非对齐时的模间串扰。数值仿真结果表明所提方案可有效地降低OAM非对齐通信系统模式间的串扰，提升了系统的误码率性能，在位置偏移和角度偏斜量较小情形下，系统误码率可提升1～2个数量级。

关键词: 轨道角动量复用通信, 非对齐, 多输入多输出均衡, 误码率

Abstract: Performance of orbital angular momentum (OAM) multiplexing communication system is inevitably degraded by the misalignment of OAM modes between the transmitter and receiver. Aiming at OAM state multiplexing system, a scheme used to reduce influences on system performance of the OAM misalignment between the transmitter and receiver is proposed by adopting multiple-input multiple-output (MIMO) equalization technology. The proposed scheme corrects or partially corrects the intermodal crosstalk of OAM state caused by misalignment of the transmitter and receiver ends. Numerical simulation results show that the proposed scheme can effectively reduce crosstalk between OAM modes of misaligned communication system, and the system bit error rate performance is improved. In the case of small lateral displacement and angular deflection, the system bit error rate can be increased by one or two orders of magnitude.

Key words: orbital angular momentum multiplexed communication, misalignment, multiple-input multiple-output equalization, bit error rate

中图分类号:

张文浩，李成，李威，赵生妹?. MIMO均衡下非对齐光子轨道角动量复用通信系统性能研究[J]. 量子电子学报.

ZHANG Wenhao, LI Cheng, LI Wei, ZHAO Shengmei. Performance of misaligned optical orbital angular momentum multiplexing communication system with MIMO equalization[J]. Chinese Journal of Quantum Electronics.

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