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| 级联编码在OFDM系统中性能分析 | |
| 引用本文： | 徐志广,朱磊基,汪涵,施玉松,邢涛,王营冠.级联编码在OFDM系统中性能分析[J].现代电子技术,2011,34(17):116-118. |
| 作者姓名： | 徐志广 朱磊基 汪涵 施玉松 邢涛 王营冠 |
| 作者单位： | 1. 中国科学院上海微系统与信息技术研究所,上海200050;中国科学院嘉兴无线传感网工程中心,浙江嘉兴314006 2. 中国科学院上海微系统与信息技术研究所,上海,200050 3. 中国科学院上海微系统与信息技术研究所,上海200050;无锡物联网产业研究院,江苏无锡214135 |
| 基金项目： | 国家重大科技专项(2009ZX03006-004); 无锡政产学研合作计划(重大创新载体)(CYWL0906) |
| 摘 要： | 将RS编码与卷积编码通过交织器连接，级联应用于OFDM系统之中。通过Matlab仿真显示，级联编码对OFDM系统性能有显著提高。在中低信噪比时，级联编码比单独RS编码或者卷积编码最大有4dB编码增益；在中高信噪比时，级联编码性能趋近于卷积编码性能。 |
| 关 键 词： | RS编码 卷积码 级联编码 OFDM分析 |
Performance Analysis of Cascaded Code in OFDM System |
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| XU Zhi-guang,ZHU Lei-ji,WANG Han,SHI Yu-song,XING Tao,WANG Ying-guan.Performance Analysis of Cascaded Code in OFDM System[J].Modern Electronic Technique,2011,34(17):116-118. | |
| Authors: | XU Zhi-guang ZHU Lei-ji WANG Han SHI Yu-song XING Tao WANG Ying-guan |
| Affiliation: | XU Zhi-guang1,2,ZHU Lei-ji1,WANG Han1,SHI Yu-song1,XING Tao1,3,WANG Ying-guan1,2(1.Shanghai Institute of Microsystem and Information Technology,Chinese Academy of Science,Shanghai 200050,China,2.Jiaxing Wireless Sensor Networks Engineering Center,Jiaxing 314006,3.Wuxi IOT Industrialization Research Institute,Wuxi 214135,China) |
| Abstract: | RS and convolution codes cascaded by interleaver are used in OFDM system.Matlab simulation shows that cascaded code can improve the performance of OFDM system dramatically.At the range of low to medium SNR,the cascaded code can get 4 dB code gain at most as compared with RS or convolution code.At the range of medium to high SNR,the cascaded code has almost the same performance as convolution code. |
| Keywords: | RS code convolution code cascaded code OFDM analysis |
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