面向无线通信的多模式信道纠错码译码  

A Multi-mode Decoder for Wireless Communication

作　　者：管武[1] 梁利平[1] 李婧[1] 胡巧芝 

机构地区：[1]中国科学院微电子研究所,北京100029

出　　处：《微电子学与计算机》2015年第8期7-11,共5页Microelectronics & Computer

基　　金：国家科技重大专项(2013ZX03003015);国家自然科学基金(61102073;61471354)

摘　　要：设计了一种面向无线通信的兼容卷积码、Turbo码和LDPC码的多模式信道纠错码译码器.这种译码器通过一个串行运算器,用于各种不同参数的卷积码的Viterbi译码、Turbo码MAX-Log-MAP译码与LDPC码的和积译码;通过多个串行运算器并行数据处理,实现高速的纠错码译码.通过可配置的结构,实现各种不同卷积码、Turbo码和LDPC码的快速解码.在65nm CMOS工艺下,该译码器资源约为2.1 mm2,slow case下时钟速率600MHz;工作在600MHz时,可完成300Mb/s的卷积码译码和LDPC码译码,及160Mb/s的Turbo码译码,满足主要标准的信道译码需求.In this paper we present a multi-mode decoder architecture for convolutional codes,Turbo codes and block low-density parity-check（LDPC）codes.It can finish viterbi decoding for convolutioan codes,Max-Log-MAP decoding for Turbo codes and Sum-product decoding for LDPC codes,which are based on a novel serial computation unit.It can process Min-Sum as well as Add-Compare-Select（ACS）operations.A configrable coprocessor is realized,and this allows the decoding of a vast number of different channel codes and implementation of various communication standards＇ channel coding schemes with just one single IPcore.According to 65 nm technology,this results in a Viterbi decoding and LDPC decoding throughput of 300 Mbit/s,and Turbo decoding of 160 Mbit/s,at600 MHz for an area of 2.1mm2.

关 键 词：卷积码 TURBO码 LDPC码 多模式译码器 

分 类 号：TN911.22[电子电信—通信与信息系统]