상세정보
학술지
A Robust ICI Suppression Based on an Adaptive Equalizer for Very Fast Time-Varying Channels in LTE-R Systems
- 발행일
- 201801
- 출처
- EURASIP Journal on Wireless Communications and Networking, v.2018, pp.1-7
- ISSN
- 1687-1499
- 출판사
- Hindawi Publishing, Springer
- 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.
- KSP 제안 키워드
- Adaptive equalizer, Channel estimation(CE), Computational complexity, Estimation method, High data rate, High-speed railway communications, Inter-carrier interference, LTE-Railway, Long term Evolution(LTE), Robust channel estimation, Time-varying channels
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