基于分组序列码本和压缩感知的大规模无源多址方案

doi:10.11959/j.issn.1000-436x.2023239

通信学报 ›› 2023, Vol. 44 ›› Issue (12): 171-180.doi: 10.11959/j.issn.1000-436x.2023239

• 学术论文 • 上一篇

基于分组序列码本和压缩感知的大规模无源多址方案

张晶¹^,², 马林¹^,², 梁楚龙³, 高宏旭⁴

¹ 南京邮电大学通信与信息工程学院，江苏南京 210003
² 江苏省无线通信重点实验室，江苏南京 210003
³ 中兴通讯股份有限公司，广东深圳，518055
⁴ 中邮建技术有限公司，江苏南京 210012

修回日期:2023-09-19 出版日期:2023-12-01 发布日期:2023-12-01
作者简介:张晶（1980- ），女，湖北襄阳人，博士，南京邮电大学副教授，主要研究方向为移动通信、物联网、无线资源管理、认知无线电等
马林（1997- ），男，山西大同人，南京邮电大学硕士生，主要研究方向为大规模无源多址和压缩感知技术
梁楚龙（1986-），男，广东中山人，博士，中兴通讯股份有限公司高级工程师，主要研究方向为移动通信、算法设计等
高宏旭（1979- ），男，黑龙江伊春人，中邮建技术有限公司高级工程师，主要研究方向为物联网、云计算等
基金资助:
国家重点研发计划基金资助项目(2020YFB1807202);国家自然科学基金资助项目(92067201);江苏省重点研发计划基金资助项目(BE2020084-1)

Massive unsourced multiple access scheme based on block sequence codebook and compressed sensing

Jing ZHANG¹^,², Lin MA¹^,², Chulong LIANG³, Hongxu GAO⁴

¹ School of Communication and Information Engineering, Nanjing University of Posts and Telecommunications, Nanjing 210003, China
² Jiangsu Province Key Lab of Wireless Communications, Nanjing 210003, China
³ ZTE Co., Ltd., Shenzhen 518055，China
⁴ China Post Construction Technology Co., Ltd., Nanjing 210012, China

Revised:2023-09-19 Online:2023-12-01 Published:2023-12-01
Supported by:
The National Key Research and Development Program of China(2020YFB1807202);The National Natural Science Foundation of China(92067201);Jiangsu Province Key Research and Development Program(BE2020084-1)

摘要/Abstract

摘要：

针对大规模机器类型通信零星突发场景，提出了一种基于分组序列码本和压缩感知的大规模无源多址方案。首先，设计了基于特定移位模式的大容量扩展码本生成方案，以扩展码本空间；然后，将上行信号的稀疏结构与多载波技术结合，支持多用户数据在部分子载波上重叠传输，以提高频谱效率；最后，建立了多载波CS-MUD模型，设计了基于码本序列块的组正交匹配追踪算法完成活动用户及其上行数据的联合检测。仿真结果表明，所提方案能够有效降低大规模随机接入的误码率。

关键词: 大规模机器类型通信, 压缩感知, 无源多址, 扩展码本

Abstract:

A massive unsourced multiple access scheme based on block sequence codebook and compressed sensing was proposed for sporadic burst scenario in massive machine type communication (mMTC).Firstly, a large-capacity spreading codebook generation scheme was designed according to a specific shift pattern, thus the codebook space was expanded.Secondly, the sparse structure of uplink signal was combined with multi-carrier technology to support overlapping transmission of multi-user data on some subcarriers, thus the spectral efficiency was improved.Finally, a multi-carrier CS-MUD model was established, and a group orthogonal matching pursuit algorithm based on codebook sequence blocks was designed to achieve the joint detection of active users and their uplink data.Simulation results show that the proposed scheme can effectively reduce the bit error rate of massive random access.

Key words: mMTC, compressed sensing, unsourced multiple access, spreading codebook

中图分类号:

TN929.5

张晶, 马林, 梁楚龙, 高宏旭. 基于分组序列码本和压缩感知的大规模无源多址方案[J]. 通信学报, 2023, 44(12): 171-180.

Jing ZHANG, Lin MA, Chulong LIANG, Hongxu GAO. Massive unsourced multiple access scheme based on block sequence codebook and compressed sensing[J]. Journal on Communications, 2023, 44(12): 171-180.

图/表 13

图1

图2

图3

图4

图5

图6

图7

图8

表1

不同算法的计算复杂度对比"

算法	计算复杂度
OMP	${Iter}_{OMP} \times O (2 N_{c} (K_{b} i^{2} L^{2} + i^{3} L^{3}))$
GOMP	${Iter}_{GOMP} \times O (2 N_{c} (K_{b} i^{2} L^{2} + i^{3} L^{3}))$
CB-GOMP	$N_{b} {Iter}_{CB-GOMP} \times O (2 N_{c} (K_{b} i^{2} L^{2} + i^{3} L^{3}))$

表1

表2

图9

图10

图11

参考文献 20

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仿真参数	参数取值
终端数量K	540
调制方式	QPSK
终端天线数目	1
接收天线数目	1
高斯白噪声方差	1
载波带宽/kHz	15
重叠子载波数目	2
系统分组数量N_b	3、6、9
数据帧长度/bit	100

基于分组序列码本和压缩感知的大规模无源多址方案

Massive unsourced multiple access scheme based on block sequence codebook and compressed sensing

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