Channel Estimation in DCT-Based OFDM
Joint Authors
Wang, Yulin
Zhang, Gengxin
Xie, Zhidong
Hu, Jing
Source
Issue
Vol. 2014, Issue 2014 (31 Dec. 2014), pp.1-6, 6 p.
Publisher
Hindawi Publishing Corporation
Publication Date
2014-03-13
Country of Publication
Egypt
No. of Pages
6
Main Subjects
Medicine
Information Technology and Computer Science
Abstract EN
This paper derives the channel estimation of a discrete cosine transform- (DCT-) based orthogonal frequency-division multiplexing (OFDM) system over a frequency-selective multipath fading channel.
Channel estimation has been proved to improve system throughput and performance by allowing for coherent demodulation.
Pilot-aided methods are traditionally used to learn the channel response.
Least square (LS) and mean square error estimators (MMSE) are investigated.
We also study a compressed sensing (CS) based channel estimation, which takes the sparse property of wireless channel into account.
Simulation results have shown that the CS based channel estimation is expected to have better performance than LS.
However MMSE can achieve optimal performance because of prior knowledge of the channel statistic.
American Psychological Association (APA)
Wang, Yulin& Zhang, Gengxin& Xie, Zhidong& Hu, Jing. 2014. Channel Estimation in DCT-Based OFDM. The Scientific World Journal،Vol. 2014, no. 2014, pp.1-6.
https://search.emarefa.net/detail/BIM-1051155
Modern Language Association (MLA)
Wang, Yulin…[et al.]. Channel Estimation in DCT-Based OFDM. The Scientific World Journal No. 2014 (2014), pp.1-6.
https://search.emarefa.net/detail/BIM-1051155
American Medical Association (AMA)
Wang, Yulin& Zhang, Gengxin& Xie, Zhidong& Hu, Jing. Channel Estimation in DCT-Based OFDM. The Scientific World Journal. 2014. Vol. 2014, no. 2014, pp.1-6.
https://search.emarefa.net/detail/BIM-1051155
Data Type
Journal Articles
Language
English
Notes
Includes bibliographical references
Record ID
BIM-1051155