In this paper, we propose an accurate channel estimation scheme for orthogonal time frequency space modulation, in which we embed multiple superimposed pilots (SPs) instead of a single SP used in the conventional scheme. Multiple SPs are used to mitigate data-pilot interference efficiently and improve the accuracy of channel estimation. Our numerical simulations demonstrate that the proposed scheme outperforms the conventional SP-based scheme in terms of bit error rate and normalized mean squared error of channel estimates, indicating the potential for further improvement in spectral efficiency.


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    Title :

    Multiple Superimposed Pilots for Accurate Channel Estimation in Orthogonal Time Frequency Space Modulation


    Contributors:


    Publication date :

    2023-10-10


    Size :

    1168434 byte





    Type of media :

    Conference paper


    Type of material :

    Electronic Resource


    Language :

    English



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