Interference Cancellation Based Channel Estimation for Massive MIMO Systems With Time Shifted Pilots

doi:10.1109/TWC.2020.3006208

	Interference Cancellation Based Channel Estimation for Massive MIMO Systems With Time Shifted Pilots
	Sun, Bule 1,2,3; Zhou, Yiqing 1,2,3; Yuan, Jinhong 4; Shi, Jinglin 1,2,3
	2020-10-01
发表期刊	IEEE TRANSACTIONS ON WIRELESS COMMUNICATIONS
ISSN	1536-1276
卷号	19 期号:10 页码:6826-6843
摘要	In massive multiple-input multiple-output (MIMO) systems with time shifted pilot (TSP) schemes, the inter-group interference caused by the pilot contamination can be eliminated when the number of base station (BS) antennas M approaches infinity. However, M is finite in practice and the effectiveness of the TSP is limited by channel estimation errors. In this paper, it is analytically shown that the mean square channel estimation error (MSCEE) of the TSP is dominated by the inter-group data interference. To reduce the MSCEE in the finite antenna massive MIMO systems, an interference cancellation based channel estimation for the TSP (IC-TSP) is proposed, where the dominant inter-group data interference is canceled based on BS cooperation. To show the advantage of the IC-TSP, the additional overhead of IC-TSP is evaluated by considering different M and the coherence time of BS-BS channels. Furthermore, the impact of sectorization and compressed sensing based BS-BS channel estimation are also discussed. We show that when 128 <= M <= 2048, with the inter-group data interference from the nearest two cell layers being canceled, the IC-TSP achieves a spectral efficiency gain of more than 1.2 bps/Hz over the TSP.
关键词	Channel estimation Interference Antennas Massive MIMO Data communication Time-frequency analysis Signal to noise ratio Finite antenna massive MIMO systems pilot contamination time shifted pilot
DOI	10.1109/TWC.2020.3006208
收录类别	SCI
语种	英语
资助项目	National Natural Science Foundation of China[61901452] ; Innovative Project of ICT/CAS[20196110]
WOS研究方向	Engineering ; Telecommunications
WOS类目	Engineering, Electrical & Electronic ; Telecommunications
WOS记录号	WOS:000579118600040
出版者	IEEE-INST ELECTRICAL ELECTRONICS ENGINEERS INC
引用统计	被引频次：21[WOS] [WOS记录] [WOS相关记录]
文献类型	期刊论文
条目标识符	http://119.78.100.204/handle/2XEOYT63/15689
专题	中国科学院计算技术研究所期刊论文_英文
通讯作者	Zhou, Yiqing
作者单位	1.Chinese Acad Sci, Beijing Key Lab Mobile Comp & Pervas Device, Beijing 100190, Peoples R China 2.Chinese Acad Sci, Inst Comp Technol, Beijing 100190, Peoples R China 3.Univ Chinese Acad Sci, Sch Comp Sci & Technol, Beijing 100049, Peoples R China 4.Univ New South Wales, Sch Elect Engn & Telecommun, Sydney, NSW 2052, Australia
推荐引用方式 GB/T 7714	Sun, Bule,Zhou, Yiqing,Yuan, Jinhong,et al. Interference Cancellation Based Channel Estimation for Massive MIMO Systems With Time Shifted Pilots[J]. IEEE TRANSACTIONS ON WIRELESS COMMUNICATIONS,2020,19(10):6826-6843.
APA	Sun, Bule,Zhou, Yiqing,Yuan, Jinhong,&Shi, Jinglin.(2020).Interference Cancellation Based Channel Estimation for Massive MIMO Systems With Time Shifted Pilots.IEEE TRANSACTIONS ON WIRELESS COMMUNICATIONS,19(10),6826-6843.
MLA	Sun, Bule,et al."Interference Cancellation Based Channel Estimation for Massive MIMO Systems With Time Shifted Pilots".IEEE TRANSACTIONS ON WIRELESS COMMUNICATIONS 19.10(2020):6826-6843.