Downlink power allocation strategy for OTFS-NOMA-based V2X systems

Yuxiang Fan

doi:10.1117/12.2671290

29 March 2023 Downlink power allocation strategy for OTFS-NOMA-based V2X systems

Yuxiang Fan

Proceedings Volume 12594, Second International Conference on Electronic Information Engineering and Computer Communication (EIECC 2022); 125942K (2023) https://doi.org/10.1117/12.2671290
Event: Second International Conference on Electronic Information Engineering and Computer Communication (EIECC 2022), 2022, Xi'an, China

Abstract

Both of orthogonal time frequency space (OTFS) and non-orthogonal multi-access (NOMA) are wireless transmission technologies applicable to high mobility environment. According to the characteristics of the Internet of Vehicles, this paper introduces a cross-domain transmission scheme combining OTFS and NOMA. Based on downlink of OTFS-NOMA system, we deduce the expressions for the SINR of the signals. We propose a dichotomous iterative power allocation (DIPA) strategy and compare it with the traditional power allocation strategies. The simulation results show that the DIPA scheme has obvious improvement on sum rate (SR) of the system compared with the traditional power allocation schemes.

Citation Download Citation

Yuxiang Fan "Downlink power allocation strategy for OTFS-NOMA-based V2X systems", Proc. SPIE 12594, Second International Conference on Electronic Information Engineering and Computer Communication (EIECC 2022), 125942K (29 March 2023); https://doi.org/10.1117/12.2671290

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