Channel Estimation for OFDM-Based Amplify-and-Forward Cooperative System Using Relay-Superimposed Pilots
Joint Authors
Source
International Journal of Digital Multimedia Broadcasting
Issue
Vol. 2018, Issue 2018 (31 Dec. 2018), pp.1-6, 6 p.
Publisher
Hindawi Publishing Corporation
Publication Date
2018-03-01
Country of Publication
Egypt
No. of Pages
6
Main Subjects
Telecommunications Engineering
Electronic engineering
Information Technology and Computer Science
Abstract EN
For the OFDM-based Amplify-and-Forward cooperative system, a novel relay-superimposed pilot strategy is proposed, where the source pilot symbols are frequency division multiplexed to estimate the cascaded channel while relay pilot sequence is superimposed onto the top of the cooperative data stream for second-hop channel estimation.
This method avoids the loss of data rate for additional pilot subcarriers but results in the interference of unknown cooperative data.
To remove the interference of cooperative data during the estimation of second-hop channel, the Cooperative Interference Cancelation scheme assisted by cooperative data from direct link is proposed.
We derive the approximated lower bound for the MSE of second-hop channel estimation.
Simulation results are presented to validate the performance of the proposed schemes.
American Psychological Association (APA)
He, Xianwen& Dou, Gaoqi& Gao, Jun. 2018. Channel Estimation for OFDM-Based Amplify-and-Forward Cooperative System Using Relay-Superimposed Pilots. International Journal of Digital Multimedia Broadcasting،Vol. 2018, no. 2018, pp.1-6.
https://search.emarefa.net/detail/BIM-1170887
Modern Language Association (MLA)
He, Xianwen…[et al.]. Channel Estimation for OFDM-Based Amplify-and-Forward Cooperative System Using Relay-Superimposed Pilots. International Journal of Digital Multimedia Broadcasting No. 2018 (2018), pp.1-6.
https://search.emarefa.net/detail/BIM-1170887
American Medical Association (AMA)
He, Xianwen& Dou, Gaoqi& Gao, Jun. Channel Estimation for OFDM-Based Amplify-and-Forward Cooperative System Using Relay-Superimposed Pilots. International Journal of Digital Multimedia Broadcasting. 2018. Vol. 2018, no. 2018, pp.1-6.
https://search.emarefa.net/detail/BIM-1170887
Data Type
Journal Articles
Language
English
Notes
Includes bibliographical references
Record ID
BIM-1170887