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- W4376455255 abstract "We propose a low-complexity channel estimation method for Orthogonal Time Frequency Space (OTFS) modulation based systems. Two important aspects of OTFS modulation, namely, (i) fine delay-Doppler (DD) resolution which results in path separation and, (ii) the separability of the effective DD domain channel gain expression into delay domain and Doppler domain terms, are used to propose an iterative channel estimation method which s eparately estimates the delay, Doppler shift and the channel gain for each channel path. The proposed estimation does not require matrix inversion and therefore has lower complexity when compared to other known methods. The proposed method is shown to achieve a normalized mean square estimation error (NMSE) performance better than other methods." @default.
- W4376455255 created "2023-05-14" @default.
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- W4376455255 date "2023-09-01" @default.
- W4376455255 modified "2023-10-16" @default.
- W4376455255 title "A Low-Complexity OTFS Channel Estimation Method for Fractional Delay-Doppler Scenarios" @default.
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- W4376455255 doi "https://doi.org/10.1109/lwc.2023.3274936" @default.
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