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학술지 A Robust ICI Suppression Based on an Adaptive Equalizer for Very Fast Time-Varying Channels in LTE-R Systems
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저자
조한벽, Tien Hoa Nguyen, Huu Nghia Nguyen, 최현균, 최진규, 노승환, Van Duc Nguyen
발행일
201801
출처
EURASIP Journal on Wireless Communications and Networking, v.2018, pp.1-7
ISSN
1687-1499
출판사
Hindawi Publishing, Springer
DOI
https://dx.doi.org/10.1186/s13638-018-1026-4
협약과제
17GS1100, 철도전용 무선통신망 표준화 연구, 조한벽
초록
High-speed railway communication implemented based on Long-Term Evolution-Railway (LTE-R) Platform has strict requirements for quality of services to support high data-rate transmission for numerous mobile users. In such environment, there often exists inter-carrier interference. In this paper, we exploit a robust channel estimation method in the time domain for very fast time-varying LTE-railway channels, and then, we propose an effective and adaptive frequency-domain equalizer that can offer a tradeoff between performance and computational complexity. The simulation results show the robustness of our proposed method compared with previous ones. The computational complexity of the proposed method retain at a decent number by exploiting specified properties of channel matrices.
키워드
Channel equalization, ICI cancellation, LTE-R, OFDM
KSP 제안 키워드
Adaptive equalizer, Channel estimation(CE), Computational complexity, Estimation method, High data rate, High-speed railway communications, ICI cancellation, Inter-carrier interference, LTE-Railway, Long term Evolution(LTE), Robust channel estimation
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