通信学报2023，Vol.44Issue(12)：171-180,10.DOI:10.11959/j.issn.1000-436x.2023239
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
摘要
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 spread-ing codebook generation scheme was designed according to a specific shift pattern,thus the codebook space was ex-panded.Secondly,the sparse structure of uplink signal was combined with multi-carrier technology to support overlap-ping transmission of multi-user data on some subcarriers,thus the spectral efficiency was improved.Finally,a mul-ti-carrier CS-MUD model was established,and a group orthogonal matching pursuit algorithm based on codebook se-quence 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.关键词
大规模机器类型通信/压缩感知/无源多址/扩展码本Key words
mMTC/compressed sensing/unsourced multiple access/spreading codebook分类
信息技术与安全科学引用本文复制引用
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):171-180,10.基金项目
国家重点研发计划基金资助项目(No.2020YFB1807202) （No.2020YFB1807202）
国家自然科学基金资助项目(No.92067201) （No.92067201）
江苏省重点研发计划基金资助项目(No.BE2020084-1)The National Key Research and Development Program of China(No.2020YFB1807202),The National Natural Science Foundation of China(No.92067201),Jiangsu Province Key Research and Development Program(No.BE2020084-1) （No.BE2020084-1）
