摘要
随着光通信技术向更长距离、更大容量和更高速度的进一步发展,有必要深入研究性能更好的FEC码型方案。在光通信应用的众多FEC码型中,级联码具有短码的复杂度和长码的性能,具有极强的纠突发和纠随机错误的能力,是光通信系统中高效编码的主要研究对象。文中主要对RS-BCH型级联码进行了理论分析及建模仿真,与一般循环码相比该级联码纠错性能优良、冗余度适中、易于实现,更适用于高速光通信系统。
With the development of optical communication technology for longer distance,greater capacity and higher speed,it is necessary to study deeply the better code type of FEC.In many code types of FEC applied in optical communication,the concatenated code with the complexity of short-length code and the performance of long-length code,is of extremely strong ability for burst and random errors,and has become the main research object of high-performance codes in optical communication system.This paper gives a theoretical analysis and describes the modeling and simulation of the RS-BCH concatenated code,and the result shows that,as compared with the cyclic code,the concatenated code is of high correction performance,moderate redundancy and easy implementation,and more suitable for the high-speed optical communication system.
出处
《通信技术》
2010年第3期40-41,44,共3页
Communications Technology
关键词
光通信
前向纠错
级联码
optical communication
forward error correction
concatenated code
