Abstract
In this paper, a new OTFS modulation channel estimation technique under high mobility conditions is proposed to face the main demand for stability in high-throughput communication networks in the new century, and the scheme proves to be significantly effective in solving the fast fading problem of time-frequency dual-selective channels, a new technique for multiplexing transmission data over the time-delay-Doppler domain. The LS channel estimation algorithm, the LMMSE channel estimation algorithm and the OMP channel estimation algorithm adapted to OTFS channels are used to investigate the channel estimation of OTFS systems, to estimate the channel environment parameters under high maneuvering conditions, and to select new modulation techniques.
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