A robust ICI suppression based on an adaptive equalizer for very fast time-varying channels in LTE-R systems

作者：Cho Hanbyeog; Tien Hoa Nguyen^*; Huu Nghia Nguyen; Choi Hyun Kyun; Choi Jin Kyu; Ro Soonghwan; Van Duc Nguyen

来源：EURASIP Journal on Wireless Communications and Networking, 2018, 2018(1): 17.

DOI：10.1186/s13638-018-1026-4

• LTE-R
• Channel equalization
• OFDM
• ICI cancellation

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.

• 出版日期2018-1-18