Constructed Data Pilot-Assisted Channel Estimators for Mobile Environments

CORC > 自动化研究所 > 中国科学院自动化研究所 > 复杂系统管理与控制国家重点实验室 > 先进控制与自动化团队

	Constructed Data Pilot-Assisted Channel Estimators for Mobile Environments
	Zhao, Zijun 1,2; Cheng, Xiang 1,2; Wen, Miaowen 3; Yang, Liuqing4 ; Jiao, Bingli 1
刊名	IEEE TRANSACTIONS ON INTELLIGENT TRANSPORTATION SYSTEMS
	2015-04-01
卷号	16 期号:2 页码:947-957
关键词	Channel estimation constructed data pilot (CDP) mobile environments orthogonal frequency-division multiplexing (OFDM) time-variant channel
英文摘要	Nowadays, more and more communication systems are deployed under mobile environments with very high velocity. This paper focuses on the channel estimation problem in vehicular scenarios, which is very challenging in view of the extremely time-varying characteristics of mobile channels. Specifically, we propose a novel channel estimator named constructed data pilot (CDP) estimator for the current communication standards by fully exploiting the channel correlation characteristics across two concatenated symbols. On the basis of the CDP estimator, we further resort to two efficient techniques to improve its performance over the entire signal-to-noise-ratio (SNR) region. For the first technique, the time-variant mobile channel is modeled as a first-order Markov process so that the exact autocorrelation value of the two adjacent symbols can be derived. For the second technique, the SNR is estimated and serves as a priori information. Simulation results reveal that our proposed channel estimators outperform existing alternatives with lower computational complexity.
WOS标题词	Science & Technology ; Technology
类目[WOS]	Engineering, Civil ; Engineering, Electrical & Electronic ; Transportation Science & Technology
研究领域[WOS]	Engineering ; Transportation
关键词[WOS]	PROLATE SPHEROIDAL SEQUENCES ; FADING CHANNELS ; OFDM SYSTEMS ; SIMULATION ; MODELS ; COMMUNICATION ; VELOCITIES ; NETWORKS ; SIGNALS ; BAND
收录类别	SCI
语种	英语
WOS记录号	WOS:000352282500036
公开日期	2015-09-22
内容类型	期刊论文
源URL	[http://ir.ia.ac.cn/handle/173211/8128]
专题	自动化研究所_复杂系统管理与控制国家重点实验室_先进控制与自动化团队
作者单位	1.Peking Univ, Sch Elect Engn & Comp Sci, Beijing 100871, Peoples R China 2.Beijing Jiaotong Univ, State Key Lab Rail Traff Control & Safety, Beijing 100044, Peoples R China 3.S China Univ Technol, Sch Elect & Informat Engn, Guangzhou 510640, Guangdong, Peoples R China 4.Chinese Acad Sci, Inst Automat, State Key Lab Management & Control Complex Syst, Beijing 100190, Peoples R China
推荐引用方式 GB/T 7714	Zhao, Zijun,Cheng, Xiang,Wen, Miaowen,et al. Constructed Data Pilot-Assisted Channel Estimators for Mobile Environments[J]. IEEE TRANSACTIONS ON INTELLIGENT TRANSPORTATION SYSTEMS,2015,16(2):947-957.
APA	Zhao, Zijun,Cheng, Xiang,Wen, Miaowen,Yang, Liuqing,&Jiao, Bingli.(2015).Constructed Data Pilot-Assisted Channel Estimators for Mobile Environments.IEEE TRANSACTIONS ON INTELLIGENT TRANSPORTATION SYSTEMS,16(2),947-957.
MLA	Zhao, Zijun,et al."Constructed Data Pilot-Assisted Channel Estimators for Mobile Environments".IEEE TRANSACTIONS ON INTELLIGENT TRANSPORTATION SYSTEMS 16.2(2015):947-957.