HOW TO EXPLOIT MOBILITY TO MITIGATE PILOT CONTAMINATION?

doi:10.1109/GlobalSIP.2018.8646433

	HOW TO EXPLOIT MOBILITY TO MITIGATE PILOT CONTAMINATION?
	Zhang, Xiaoyu1 ; Li, Xuanfeng1 ; Zhou, Yong1 ; Qian, Hua 2; Luo, Xiliang1
	2018
会议录名称	2018 IEEE GLOBAL CONFERENCE ON SIGNAL AND INFORMATION PROCESSING (GLOBALSIP 2018)
页码	166-170
发表状态	已发表
DOI	10.1109/GlobalSIP.2018.8646433
摘要	To tackle the uplink pilot contamination problem in massive multiple-input multiple-output (MIMO) systems, current researches only relied on the angle of arrival at the base station. However, this information is insufficient when the users share the same scattering environment. In this paper, we propose a novel strategy by exploiting the user mobility. Due to limited scatterers around the users, we first investigate the channel sparsity and derive the corresponding angle-Doppler frequency domain channel power spectrum (AD-CPS). We then propose a method to mitigate the pilot contamination through aligning the AD-CPSs. Compared with the existing works, we further demonstrate the effectiveness of the proposed scheme in supporting more orthogonal pilots when the interfering users exhibit different moving patterns. Simulations verify the superior performance and show that the proposed scheme can serve as an additional decontamination mechanism for the UL pilots in massive MIMO systems.
关键词	Massive MIMO pilot contamination time-division duplexing Doppler power spectrum channel sparsity
出版地	345 E 47TH ST, NEW YORK, NY 10017 USA
会议地点	Anaheim, CA, USA
会议日期	26-29 Nov. 2018
URL	查看原文
收录类别	CPCI ; CPCI-S ; EI
语种	英语
WOS研究方向	Engineering
WOS类目	Engineering, Electrical & Electronic
WOS记录号	WOS:000462968100034
出版者	IEEE
EI入藏号	20191206664553
EI主题词	Contamination ; Frequency domain analysis ; Power spectrum
EI分类号	Mathematical Transformations:921.3
原始文献类型	Proceedings Paper
引用统计	正在获取...
文献类型	会议论文
条目标识符	https://kms.shanghaitech.edu.cn/handle/2MSLDSTB/29136
专题	信息科学与技术学院_硕士生信息科学与技术学院_PI研究组_罗喜良组信息科学与技术学院_PI研究组_周勇组信息科学与技术学院_博士生
通讯作者	Zhang, Xiaoyu
作者单位	1.ShanghaiTech Univ, Shanghai, Peoples R China 2.Shanghai Adv Res Inst, Shanghai, Peoples R China
第一作者单位	上海科技大学
通讯作者单位	上海科技大学
第一作者的第一单位	上海科技大学
推荐引用方式 GB/T 7714	Zhang, Xiaoyu,Li, Xuanfeng,Zhou, Yong,et al. HOW TO EXPLOIT MOBILITY TO MITIGATE PILOT CONTAMINATION?[C]. 345 E 47TH ST, NEW YORK, NY 10017 USA:IEEE,2018:166-170.