Research Article
ICI Mitigation by Estimation of Double Carrier Frequency Offsets in High-Speed-Railway Communication Systems for Smart Cities
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@INPROCEEDINGS{10.1007/978-3-319-74176-5_7, author={Yem Vu and Thi Trinh and Nhat Vu and Canh Nguyen and Duy Nguyen}, title={ICI Mitigation by Estimation of Double Carrier Frequency Offsets in High-Speed-Railway Communication Systems for Smart Cities}, proceedings={Industrial Networks and Intelligent Systems. 3rd International Conference, INISCOM 2017, Ho Chi Minh City, Vietnam, September 4, 2017, Proceedings}, proceedings_a={INISCOM}, year={2018}, month={1}, keywords={Doppler effect CFO OFDM HSR ICI Smart cities}, doi={10.1007/978-3-319-74176-5_7} }- Yem Vu
Thi Trinh
Nhat Vu
Canh Nguyen
Duy Nguyen
Year: 2018
ICI Mitigation by Estimation of Double Carrier Frequency Offsets in High-Speed-Railway Communication Systems for Smart Cities
INISCOM
Springer
DOI: 10.1007/978-3-319-74176-5_7
Abstract
OFDM is substantial against Inter-symbol-interference due to long symbol duration. However, inter-carrier interference (ICI) caused by high Doppler frequency shift has a severe impact on OFDM in case of high channel variations. In this paper, we propose an ICI mitigation method by utilizing the estimation and pre-compensation of high Doppler shifts in high-speed railway communication systems for smart cities. The estimate of the Doppler shift is based on a preamble frame of data in communication link between EnodeB and user equipment. The simulation results show that the performance of system has been improved using the proposed model.
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