Constructed Data Pilot-Assisted Channel Estimators for Mobile Environments

CASIA OpenIR > 多模态人工智能系统全国重点实验室 > 平行智能技术与系统团队

	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
发表期刊	IEEE TRANSACTIONS ON INTELLIGENT TRANSPORTATION SYSTEMS
	2015-04-01
卷号	16 期号:2 页码:947-957
文章类型	Article
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.
关键词	Channel Estimation Constructed Data Pilot (Cdp) Mobile Environments Orthogonal Frequency-division Multiplexing (Ofdm) Time-variant Channel
WOS标题词	Science & Technology ; Technology
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研究方向	Engineering ; Transportation
WOS类目	Engineering, Civil ; Engineering, Electrical & Electronic ; Transportation Science & Technology
WOS记录号	WOS:000352282500036
引用统计	被引频次：16[WOS] [WOS记录] [WOS相关记录]
文献类型	期刊论文
条目标识符	http://ir.ia.ac.cn/handle/173211/8128
专题	多模态人工智能系统全国重点实验室_平行智能技术与系统团队
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.