As high speed optical transmission technology and intelligent optical networking technology gradually become mature, modern communication network is developing toward high speed and broad bandwidth.
随着高速光传输技术和智能光网络技术的不断成熟，现代通信网正朝着高速化和宽带化的方向演变。
WDM technology is a method for increasing the transmission capacity of optical fiber, but the transmission performance in WDM system with high speed and long distance is limited.
波分复用(WDM)技术是增大光纤传输容量的方法，但是在高速率、长距离wdm系统中传输性能受到限制。
The research of high speed transmission system is a hot topic in the optical communication field and one of the key technologies is channel coding.
高速光纤通信系统的研究是当前光通信领域的一大热点，信道编码技术是其中的一项关键技术。
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