基于小波包变换码的新型无源光网络上行信号复用和传输方法

发布时间：2018-06-05 08:07

本文选题：光通信 + 无源光网络　；参考：《中国激光》2014年06期

【摘要】：提出了一种基于小波包变换正交码的多电平正交编码的无源光网络(PON)中上行信号复用和传输新方法,将PON系统中各个不同的光网络单元(ONU)用户用小波变换正交码来进行调制、复用和传输,能够实现各个不同ONU用户共享一个波长。由于采用了小波变换编码,可以实现数量很多ONU用户同时上行,在ONU端不需要突发光模块以及多波长激光器,因而成本低,传输速率高,接入数量多。给出了基于该方法的上行系统调制、复用和传输的结构模型,并仿真了传输速率为1.25Gb/s和10Gb/s下不同路ONU用户上行传输,仿真结果表明,最大可以实现上行32路,每路10Gb/s,总传输速率达到320Gb/s的高速PON系统。
[Abstract]:In this paper, a new method of uplink signal multiplexing and transmission in PON based on wavelet packet transform orthogonal code is proposed. Different optical network units in PON system are modulated by wavelet transform orthogonal code. Multiplexing and transmission, can achieve different ONU users share a wavelength. Because of the wavelet transform coding, many ONU users can be uplink at the same time, and the burst optical module and multi-wavelength laser are not needed in the ONU, so the cost is low, the transmission rate is high, and the number of access is large. The structural model of modulation, multiplexing and transmission in uplink system based on this method is given. The uplink transmission of different ONU users at the transmission rate of 1.25 GB / s and 10 GB / s is simulated. The simulation results show that the uplink 32 channels can be realized at the maximum. A high speed PON system with a total transmission rate of 320 GB / s per channel of 10 GB / s.
【作者单位】：武汉光电国家实验室(筹)华中科技大学;光纤通信技术和网络国家重点实验室武汉邮电科学研究院;
【基金】：国家自然科学基金(6177063) 国家973计划(2010CB328305) 光纤通信和光网络技术国家重点实验室开放基金
【分类号】：TN929.1

【参考文献】