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- W4380715025 abstract "This paper addresses channel estimation for linear time-varying (LTV) wireless propagation links under the assumption of double sparsity i.e., sparsity in both the delay and the Doppler domains. Affine frequency division multiplexing (AFDM), a recently proposed waveform, is shown to be optimal (in a sense that we make explicit) for this problem. With both mathematical analysis and numerical results, the minimal pilot and guard overhead needed for achieving a target mean squared error (MSE) while performing channel estimation is shown to be the smallest when AFDM is employed instead of both conventional and recently proposed waveforms." @default.
- W4380715025 created "2023-06-15" @default.
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- W4380715025 date "2023-06-13" @default.
- W4380715025 modified "2023-09-27" @default.
- W4380715025 title "Affine Frequency Division Multiplexing For Communications on Sparse Time-Varying Channels" @default.
- W4380715025 doi "https://doi.org/10.48550/arxiv.2306.07765" @default.
- W4380715025 hasPublicationYear "2023" @default.
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