多用户数传下 RS+CC 级联码应用
刘博;朱江
【期刊名称】《通信技术》 【年(卷),期】2013(000)006
【摘要】Space-borne switching system is usually based on TDMA or FDMA transmission system, and the corresponding casecade correction for RS and convolutional codes usually adopts multi-path parallel decoding or Viterbi decoder with multi-path decoding capability. Although these two methods are simple in implementations, their hardware resource and memories would become very large with the increasing of users number, this would also make them difficult to implement on satellite. A method based on frame structure design and with single high-speed encoder/decoder for processing multi-path low-speed data flow is proposed, which could easily solve the mentioned problem. Analysis and comparison indicate that the new method occupies the least amount of hardware resources and memories, almost has no loss of transmission efficiency, and also is easy in implementation, and thus suitable for space-borne switching system.% 星载交换系统通常采用时分多址(TDMA,Time Division Multiple Acess)或频分多址(FDMA, Frequency Division Multiple Acess)传输体制，与之相对应的 RS+CC 级联码通常采用多路并行编译码的方法或使用具有多通道译码功能的卷积译码器，这两种方法实现简单，但随用户数的增大，硬件规模、存储空间资
多用户数传下 RS+CC 级联码应用
