基于OCDM的PON监控技术研究

Research of PON system monitoring technology based on OCDM

讨论了OCDM在无源光网络监控系统中的应用,介绍了基于OCDM的1D码、周期码方案及其监控原理。分析了两种监控方案中误码率与用户数、误码率与门限值的关系。仿真结果表明,与1D码相比,周期码具有更好的码字特性,更能满足当前PON监控系统多用户、高信噪比的要求。

This paper discusses the application of OCDM in the monitoring system of passive optical network （PON）,introduces the OCDM based one-dimensional （1D） coding scheme and periodic coding scheme. This paper also analyses the relationship between BER and the subscriber number, the relationship between BER and threshold value of the two monitoring schemes. Simulation results show that, compared with the 1D cod-ing scheme, periodic coding scheme has better coding features to better meet multi-user, high SNR require-ments of the current PON monitoring system.