摘要： 提出一种高度并行的Turbo译码器。该译码器包含32个并行的基-4子译码器，采用改进的滑窗译码流程和存储单元划分方案，使吞吐率最高提升43.2%。在SMIC 0.13 μm工艺下，该译码器包含194万等效门，在294 MHz时钟频率和5.5次迭代下，吞吐率可达 1.19 Gb/s，满足4G移动通信标准LTE-Advanced的峰值吞吐率要求。

关键词: Turbo码, 译码器, 并行结构, 基-4, 4G移动通信

Abstract: This paper presents a highly-parallel Turbo decoder architecture. It utilizes 32-parallel radix-4 component decoders and its throughput is increased by 43.2% at most with modified sliding window and memory partition scheme. The proposed decoder is implemented in SMIC 0.13 μm technology, which has 1.94 M equivalent gate counts and achieves 1.19 Gb/s running at 294 MHz with 5.5 iterations. It meets the peak data rate requirement of 4G mobile communication standard LTE-Advanced.

Key words: Turbo code, decode, parallel architecture, radix-4, 4G mobile communication

中图分类号: 

• TP331