高码率Turbo-OVCDM的叠加编码构造

doi:10.13190/j.jbupt.2016.01.014

北京邮电大学学报 ›› 2016, Vol. 39 ›› Issue (1): 79-82.doi: 10.13190/j.jbupt.2016.01.014

高码率Turbo-OVCDM的叠加编码构造

周素华¹, 周晶², 张茹³

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

收稿日期:2015-01-15 出版日期:2016-02-28 发布日期:2016-02-28
作者简介:周素华(1971-),女,副教授,E-mail:zhousuhua@ccbupt.cn.
基金资助:
国家自然科学基金项目(61177085,61377097)

Construction of High Rate Turbo-OVCDM by Superposition Coding

ZHOU Su-hua¹, ZHOU Jing², ZHANG Ru³

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

Received:2015-01-15 Online:2016-02-28 Published:2016-02-28

摘要/Abstract

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

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 coding 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.

Key words: overlapped code division multiplexing, serial interference cancellation, superposition coding, Gaussian multiple access channel

中图分类号:

TN911.22

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.

ZHOU Su-hua, ZHOU Jing, ZHANG Ru. Construction of High Rate Turbo-OVCDM by Superposition Coding[J]. JOURNAL OF BEIJING UNIVERSITY OF POSTS AND TELECOM, 2016, 39(1): 79-82.

高码率Turbo-OVCDM的叠加编码构造

Construction of High Rate Turbo-OVCDM by Superposition Coding

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