一种新型上行SCMA系统接收机

张宏扬; 郑长亮; 邵根富; 刘华平

doi:10.11959/j.issn.1000-0801.2017188

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一种新型上行SCMA系统接收机

研究与开发 | 更新时间：2024-06-05

- 一种新型上行SCMA系统接收机
- A novel receiver for uplink SCMA system
- 电信科学 2017年33卷第8期页码：138-144
- 作者机构：
- 作者简介：
  
  [ "张宏扬（1991-），男，杭州电子科技大学硕士生，主要研究方向为非正交多址接入。" ]
  [ "郑长亮（1980-），男，博士，杭州电子科技大学讲师，主要研究方向为无线通信、移动通信等。" ]
  [ "邵根富（1962-），男，杭州电子科技大学教授、硕士生导师，主要研究方向为无线通信理论、信号处理与自动控制等。" ]
  [ "刘华平（1965-），男，博士，杭州电子科技大学特聘教授、硕士生导师，美国俄勒冈州立大学终身教授，主要研究方向为无线通信理论、无线传感网络和信号处理等。" ]
- 基金信息：
  
  国家自然科学基金资助项目;The National Natural Science Foundation of China(61471153);杭州电子科技大学科研启动基金资助项目;Scientific Research Foundation of Hangzhou Dianzi University(KYS085614014);杭州电子科技大学科研启动基金资助项目;Scientific Research Foundation of Hangzhou Dianzi University(ZX150204307002/001)
- DOI：10.11959/j.issn.1000-0801.2017188
  中图分类号： TN929.5
- 网络出版日期：2017-08，
  
  纸质出版日期：2017-08-15
- 稿件说明：
移动端阅览
张宏扬, 郑长亮, 邵根富, 等. 一种新型上行SCMA系统接收机[J]. 电信科学, 2017,33(8):138-144.

Hongyang ZHANG, Changliang ZHENG, Genfu SHAO, et al. A novel receiver for uplink SCMA system[J]. Telecommunications science, 2017, 33(8): 138-144.
张宏扬, 郑长亮, 邵根富, 等. 一种新型上行SCMA系统接收机[J]. 电信科学, 2017,33(8):138-144. DOI： 10.11959/j.issn.1000-0801.2017188.

Hongyang ZHANG, Changliang ZHENG, Genfu SHAO, et al. A novel receiver for uplink SCMA system[J]. Telecommunications science, 2017, 33(8): 138-144. DOI： 10.11959/j.issn.1000-0801.2017188.

摘要

稀疏码多址接入（SCMA）是一种码域非正交多址接入技术，以其优异性能成为5G多址接入技术的热门候选方案。上行SCMA系统一般采用消息传递算法（MPA）接收机，检测过程中存在由先验信息带来的误差。针对这一问题提出一种新型接收机，称为环MPA（R-MPA）接收机，其通过一种联合检测方案来消除上述误差对最终检测结果的影响。理论分析和仿真验证表明，与现有的log-MPA接收机及经典MPA接收机相比，所提R-MPA接收机是一种检测精度更高而实施复杂度较低的上行SCMA系统接收机。

Abstract

Sparse code multiple access (SCMA) is a type of code domain non-orthogonal multiple access technology

which is regarded as a promising multiple access technology for 5G due to its excellent performance.The uplink SCMA system generally uses a message passing algorithm (MPA) in the receiver.The priori information can be inaccurated to cause an increased detection error.A novel receiver for the uplink SCMA system

called ring-MPA (R-MPA) receiver

was proposed to solve this problem

by using a joint detection process.The proposed R-MPA receiver was compared with the log-MPA receiver and the classic MPA receiver

two state-of-the-art existing schemes.Both theoretical analysis and computer simulation results show that the proposed receiver not only has a superior error performance

but also has a lower implementation complexity than these existing schemes.

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references

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