| WiMax系统中卷积Turbo码技术的研究 |
| |
| 引用本文： | 邵长虎,徐友云,张乐.WiMax系统中卷积Turbo码技术的研究[J].信息技术,2006,30(11):12-15. |
| |
| 作者姓名： | 邵长虎 徐友云 张乐 |
| |
| 作者单位： | 上海交通大学电子工程系,上海,200240 |
| |
| 基金项目： | 国家自然科学基金;国家高技术研究发展计划(863计划) |
| |
| 摘 要： | 卷积Turbo码是很灵活的码字，帧长和码率的变化范围很大，这也是选它做为WiMax（world Intemperability for Microwave Access）标准中的信道编码方案之一的主要原因，它采用递归系统卷积码作为子码，相对于经典Turbo码，它具有编码效率高，相同复杂度译码器下纠错性能好以及译码时延小等优点。详细介绍了卷积Turbo码的编译码器结构，提出译码方案，并且给出仿真性能曲线。
|
| 关 键 词： | 卷积Turbo码 交织器 环形网格图 |
| 文章编号： | 1009-2552(2006)11-0012-04 |
| 修稿时间： | 2006年5月18日 |
Research on the convolutional Turbo code technique for WiMax system |
| |
| SHAO Chang-hu,XU You-yun,ZHANG Le.Research on the convolutional Turbo code technique for WiMax system[J].Information Technology,2006,30(11):12-15. |
| |
| Authors: | SHAO Chang-hu XU You-yun ZHANG Le |
| |
| Abstract: | Convolutional Turbo codes(CTC) are very flexible codes,easily adaptable to a large range of data block sizes and coding rates.This is the main reason for their being adopted in the WiMax system.CTC are built from recursive systematic convolutional(RSC)component codes with 2 inputs.It has many advantages compared to classical Turbo codes,such as higher encoding efficiency,better error-correcting performance for equivalent implementation complexity and lower decoding latency.In this paper,the encoder and decoder structure of CTC are introduced in detail.The paper also presents the decoding scheme,while the simulation results are given as well. |
| |
| Keywords: | WiMax |
| 本文献已被 CNKI 维普 万方数据 等数据库收录！ |
|
