DocumentCode
1642192
Title
Time-Varying Channel Estimation for OFDM Systems with Superimposed Training and Basis Expansion Model
Author
Zhang, Han ; Gao, Shan ; Zhong, Qinghua ; Dai, Xianhua
Author_Institution
Dept. Phys. & Telecommun. Eng., South China Normal Univ., Guangzhou, China
fYear
2011
Firstpage
1
Lastpage
3
Abstract
An approach of superimposed training (ST) aided time-varying (TV) channel estimation for Orthogonal Frequency Division Multiplexing (OFDM) systems is presented. By modeling the channel as complex exponential bases, channel estimation is adopted over multiple OFDM symbols by using a sequence of data-dependent ST signal. Simulations illustrate the proposed channel estimator achieves a satisfactory estimation performance under a wide range of Doppler shift.
Keywords
Doppler shift; OFDM modulation; channel estimation; time-varying channels; Doppler shift range; OFDM system; ST; TV channel estimation; basis expansion model; channel modeling; complex exponential base; data-dependent ST signal; orthogonal frequency division multiplexing system; superimposed training; time-varying channel estimation; Channel estimation; Doppler effect; Estimation; Frequency estimation; OFDM; TV; Training;
fLanguage
English
Publisher
ieee
Conference_Titel
Wireless Communications, Networking and Mobile Computing (WiCOM), 2011 7th International Conference on
Conference_Location
Wuhan
ISSN
2161-9646
Print_ISBN
978-1-4244-6250-6
Type
conf
DOI
10.1109/wicom.2011.6040058
Filename
6040058
Link To Document