Covariance-Based Joint Device Activity and Delay Detection in Asynchronous mMTC

doi:10.1109/LSP.2022.3144853

CSpace

	Covariance-Based Joint Device Activity and Delay Detection in Asynchronous mMTC
	Wang, Zhaorui 1; Liu, Ya-Feng 2; Liu, Liang 3
	2022
发表期刊	IEEE SIGNAL PROCESSING LETTERS
ISSN	1070-9908
卷号	29 页码:538-542
摘要	In this letter, we study the joint device activity and delay detection problem in asynchronous massive machine-type communications (mMTC), where all active devices asynchronously transmit their preassigned preamble sequences to the base station (BS) for device identification and delay detection. We first formulate this joint detection problem as a maximum likelihood estimation problem, which depends on the received signal only through its sample covariance, and then propose efficient coordinate descent type of algorithms to solve the formulated problem. Our proposed covariance-based approach is sharply different from the existing compressed sensing (CS) approach for the same problem. Numerical results show that our proposed covariance-based approach significantly outperforms the CS approach in terms of the detection performance since our proposed approach can make better use of the BS antennas than the CS approach.
关键词	Delays Channel estimation Signal processing algorithms Synchronization Protocols Performance evaluation Optimization Asynchronous mMTC coordinate descent joint activity and delay detection random access
DOI	10.1109/LSP.2022.3144853
收录类别	SCI
语种	英语
资助项目	National Natural Science Foundation of China (NSFC)[12022116] ; National Natural Science Foundation of China (NSFC)[12021001] ; Research Grants Council, Hong Kong, China[25215020]
WOS研究方向	Engineering
WOS类目	Engineering, Electrical & Electronic
WOS记录号	WOS:000756786300002
出版者	IEEE-INST ELECTRICAL ELECTRONICS ENGINEERS INC
引用统计
文献类型	期刊论文
条目标识符	http://ir.amss.ac.cn/handle/2S8OKBNM/60027
专题	中国科学院数学与系统科学研究院
通讯作者	Liu, Ya-Feng
作者单位	1.Chinese Univ Hong Kong, Dept Informat Engn, Hong Kong, Peoples R China 2.Chinese Acad Sci, Acad Math & Syst Sci, Inst Computat Math & Sci Engn Comp, State Key Lab Sci & Engn Comp, Beijing 100190, Peoples R China 3.Hong Kong Polytech Univ, Dept Elect & Informat Engn, Hong Kong, Peoples R China
推荐引用方式 GB/T 7714	Wang, Zhaorui,Liu, Ya-Feng,Liu, Liang. Covariance-Based Joint Device Activity and Delay Detection in Asynchronous mMTC[J]. IEEE SIGNAL PROCESSING LETTERS,2022,29:538-542.
APA	Wang, Zhaorui,Liu, Ya-Feng,&Liu, Liang.(2022).Covariance-Based Joint Device Activity and Delay Detection in Asynchronous mMTC.IEEE SIGNAL PROCESSING LETTERS,29,538-542.
MLA	Wang, Zhaorui,et al."Covariance-Based Joint Device Activity and Delay Detection in Asynchronous mMTC".IEEE SIGNAL PROCESSING LETTERS 29(2022):538-542.