fig1.tex

\documentclass[tikz]{standalone}
\usepackage{pgfplots}
% style from fig.11 in https://ieeexplore.ieee.org/abstract/document/9031358
\begin{document}
    \begin{tikzpicture}
    \pgfplotstableread{datafile1.csv}{\datatable}
    \begin{axis}[
        xlabel={Computation time passed~[minutes]},
        ylabel={bits per channel use},
        ylabel style={at={(axis description cs:0.06,0.5)}},
        xmin= 0, xmax= 120, ymin= 0,
        legend style = {
            legend pos=south east,
            legend columns = {2},
            nodes={scale=0.5}, % make the legend box smaller
            %font = {\tiny},
        },
        grid = major,
        grid style=dashed,
        mark repeat={8},
        width = \linewidth,
        height = 0.5\linewidth,
        mark options={solid},
        %% extra label for information rate
        every axis/.append style={
            extra description/.code={
                \node[scale=0.5] at (0.07,0.93) {Information Rate};
                \node[scale=0.5] at (0.93,0.93) {Information Rate};
            },
        },
    ]

    %1
    \addplot[red,mark=o,dashed] table [x index=0, y index=1] {\datatable};
    \addlegendentry{EM-type algorithm~[13] with 4-state FSMC}

    %2
    \addplot[dashed,mark=o] table [x index=0, y index=2] {\datatable};
    \addlegendentry{EM-type algorithm~[13] with 16-state FSMC}

    %3
    \addplot[blue,mark=diamond] table [x index=0, y index=3] {\datatable};
    \addlegendentry{Algorithm~11 with 1-qubit QSC}

    %4
    \addplot[red,mark=+] table [x index=0, y index=4] {\datatable};
    \addlegendentry{Algorithm~11 with 4-state FSMC}

    %5
    \addplot[mark=+] table [x index=0, y index=5] {\datatable};
    \addlegendentry{Algorithm~11 with 16-state FSMC}

    %6
    \addplot[red,mark=diamond] table [x index=0, y index=6] {\datatable};
    \addlegendentry{Algorithm~11 with 2-qubit QSC}

    %7
    \addplot[dashed] table [x index=0, y index=7] {\datatable};
    \addlegendentry{Estimated Information Rate~(Alg.~9)}

    \end{axis}
    \end{tikzpicture}
\end{document}