|
|||||
|
|
| 高码率Turbo-OVCDM的叠加编码构造 | |
| 引用本文： | 周素华,周晶,张茹.高码率Turbo-OVCDM的叠加编码构造[J].北京邮电大学学报,2016,39(1):79-82. |
| 作者姓名： | 周素华 周晶 张茹 |
| 作者单位： | 1. 北京邮电大学世纪学院, 北京 102101; 2. 中国科学技术大学电子工程与信息科学系, 合肥 230027; 3. 北京邮电大学民族教育学院, 北京 102209 |
| 基金项目： | 国家自然科学基金项目(61177085 |
| 摘 要： | 为解决Turbo-OVCDM译码复杂度随码率指数增长的问题,提出了一种新的、通用的Turbo-OVCDM编译码方案.该方案包括1)在发送端由2个或多个Turbo-OVCDM低速率码的码字通过直接的叠加编码生成高速率码的码字;2)在接收端通过串行干扰抵消进行译码.与传统的由单个编码矩阵直接构造重叠码分复用方法相比,新方案的译码复杂度大大降低.性能仿真证实了新方案的可行性. |
| 关 键 词： | 重叠码分复用 串行干扰抵消 叠加编码 高斯多址信道 |
| 收稿时间： | 2015-01-15 |
Construction of High Rate Turbo-OVCDM by Superposition Coding |
|
| ZHOU Su-hua,ZHOU Jing,ZHANG Ru.Construction of High Rate Turbo-OVCDM by Superposition Coding[J].Journal of Beijing University of Posts and Telecommunications,2016,39(1):79-82. | |
| Authors: | ZHOU Su-hua ZHOU Jing ZHANG Ru |
| Affiliation: | 1. Century College, Beijing University of Posts and Telecommunications, Beijing 102102, China; 2. Department of Electronic Engineering and Information Science, University of Science and Technology China, Hefei 230027, China; 3. School of Ethnic Minority Education, Beijing University of Posts and Telecommunications, Beijing 102209, China |
| Abstract: | The decoding complexity of traditional type of Turbo-overlapped code division multiplexing ( OVCDM) increases exponentially with the code rate. To solve this problem, a new Turbo-OVCDM cod-ing and decoding approach was proposed. The maximum sum-rate achieving strategy in Gaussian multiple access channels was used to construct point-to-point coding scheme. Superposition of two or more Turbo-OVCDM codes and serial interference cancellation were applied for coding and decoding respectively. Numerical results demonstrate the feasibility of the proposed approach. |
| Keywords: | overlapped code division multiplexing serial interference cancellation superposition cod-ing Gaussian multiple access channel |
| 本文献已被 万方数据 等数据库收录！ | |
| 点击此处可从《北京邮电大学学报》浏览原始摘要信息 | |
| 点击此处可从《北京邮电大学学报》下载全文 | |