Semi-Blind Channel Estimation of MIMO-OFDM Systems Based on Improved PSO-Hopfield neural Network

doi:10.1145/3206185.3219779

CORC > 兰州理工大学 > 兰州理工大学

	Semi-Blind Channel Estimation of MIMO-OFDM Systems Based on Improved PSO-Hopfield neural Network
	Jie, Hao 1,2
	2018
关键词	MIMO-OFDM systems semi-blind channel estimation cost function PSO improved hopfield network
DOI	10.1145/3206185.3219779
页码	153-157
英文摘要	Channel estimation is the key part of the design of any receiver, this paper proposed a semi-blind channel estimation method of MIMO-OFDM systems based on improved Hopfield neural network. First, the proposed method improved the semi-blind cost function for neural network based on LS criterion and LMMSE criterion. Then, this paper proposed a new structure of Hopfield network to substitute the function iteration, and the improved PSO algorithm was also used to optimize the parameter of Hopfield network. Finally, The new estimation method was proposed to estimate the channel response. The comparison of channel estimation by the proposed method and RBF network were present, the results validated that the proposed method is feasible to estimate the channel response, and that the precision of estimation is improved, which will be useful for the future channel estimation of MIMO-OFDM systems.
会议录	ISMSI 2018: PROCEEDINGS OF THE 2ND INTERNATIONAL CONFERENCE ON INTELLIGENT SYSTEMS, METAHEURISTICS & SWARM INTELLIGENCE
会议录出版者	ASSOC COMPUTING MACHINERY
会议录出版地	1515 BROADWAY, NEW YORK, NY 10036-9998 USA
语种	英语
资助项目	Project Foundation of Universities directly under the Ministry of Education of China[31920150063]
WOS研究方向	Computer Science ; Engineering
WOS记录号	WOS:000475551900027
内容类型	会议论文
源URL	[http://119.78.100.223/handle/2XXMBERH/36187]
专题	兰州理工大学
通讯作者	Jie, Hao
作者单位	1.Northwest Minzu Univ, Sch Elect Engn, Lanzhou, Gansu, Peoples R China 2.Lanzhou Univ Technol, Sch Comp & Commun, Lanzhou, Gansu, Peoples R China
推荐引用方式 GB/T 7714	Jie, Hao. Semi-Blind Channel Estimation of MIMO-OFDM Systems Based on Improved PSO-Hopfield neural Network[C]. 见:.