国防科技大学学报Issue(1)：86-92,7.DOI:10.11887/j.cn.201601015
现场可编程门阵列参数化多标准高吞吐率基4 Viterbi 译码器
Parameterized multi-standard high-throughput radix-4 Viterbi decoder on field-programmable gate array
摘要
Abstract
To achieve the goal of high performance and flexibility,a parameterized multi-standard adaptive radix-4 Viterbi decoder based on the field-programmable gate array was presented.This decoder adopts constraint lengths ranging from 3 to 9,code rates of 1 /2 or 1 /3 and supports error-correcting decoding of arbitrary truncation lengths.The unsigned quantization,add-compare-select unit optimization and normalization judgment logic separation strategies were used to optimize the design of critical path,so that it can improve system throughput.Experiment results show that:the decoder can change the structures according to the parameters set by users and achieve dynamic switching in multiple communication standards;the throughput can reach up to 541 Mbps,apparently superior to the related works;the decoder achieves low bit error ratio in multiple standards such as GPRS,WiMax,LTE,CDMA and 3G and satisfies the decoding requirements of multiple communication standards.关键词
现场可编程门阵列/Viterbi 译码器/参数化/多标准/基 4Key words
field-programmable gate array/Viterbi decoder/parameterization/multi-standard/radix-4分类
信息技术与安全科学引用本文复制引用
夏飞,聂晶,李荣春,王文涛..现场可编程门阵列参数化多标准高吞吐率基4 Viterbi 译码器[J].国防科技大学学报,2016,(1):86-92,7.基金项目
国家自然科学基金资助项目（61202127）；湖南省学位与研究生教育专项基金资助项目 （）
