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The signal of V0 has significant intensity in the DD domain, which should be demodulated first.and the NOMA usersĄ¯signals can be treated as the noise through serial interference cancellation (SIC).The received signal of user V0 in the DD domain is written as the first formula,the received signal of the high-speed user is expressed as the second formula.NOMA-OTFS shares the spectrum through the differences inuser mobility characteristics, thus obtaining a higher resolution, while OMA-OTFS obviously does nothave this advantage. |