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Copy pathrx_time_ldpc_qam16.m
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rx_time_ldpc_qam16.m
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% Function to generate demodulator bar graph with LLR Mean relative erro
function rx_time_ldpc_qam16( ...
logdata_fxp_base16, logdata_fxp_approx16,...
logdata_fxp_base32, logdata_fxp_approx32,...
iter)
% Load colors from colors.m
run("colors.m");
% Use LaTeX for plots
set(0, 'defaultTextInterpreter','latex');
set(0, 'defaultLegendInterpreter', 'latex');
% Extract data from table for specific noise and LDPC iterations
idx_fxp_base16 = find(logdata_fxp_base16.LDPC_Iter == iter);
idx_fxp_approx16 = find(logdata_fxp_approx16.LDPC_Iter == iter);
idx_fxp_base32 = find(logdata_fxp_base32.LDPC_Iter == iter);
idx_fxp_approx32 = find(logdata_fxp_base32.LDPC_Iter == iter);
delay = 5.2;
% Create array with base and optimized time values
% FLP Base
y(1,1) = mean(logdata_fxp_base16.Demod_Base(idx_fxp_base16));
y(1,2) = delay;
y(1,3) = mean(logdata_fxp_base16.Deinterleaver(idx_fxp_base16));
y(1,4) = mean(logdata_fxp_base16.Decoder(idx_fxp_base16));
base = y(1,1) + y(1,2) + y(1,3) + y(1,4);
% S2.14 Base MUL16
y(2,1) = mean(logdata_fxp_base16.Demod_Opt(idx_fxp_base16));
y(2,2) = delay;
y(2,3) = mean(logdata_fxp_base16.Deinterleaver(idx_fxp_base16));
y(2,4) = mean(logdata_fxp_base16.Decoder(idx_fxp_base16));
% S2.14 Approx MUL16
y(3,1) = mean(logdata_fxp_approx16.Demod_Opt(idx_fxp_approx16));
y(3,2) = delay;
y(3,3) = mean(logdata_fxp_approx16.Deinterleaver(idx_fxp_approx16));
y(3,4) = mean(logdata_fxp_base16.Decoder(idx_fxp_approx16));
% S2.14 Base MUL32
y(4,1) = mean(logdata_fxp_base32.Demod_Opt(idx_fxp_base32));
y(4,2) = delay;
y(4,3) = mean(logdata_fxp_base32.Deinterleaver(idx_fxp_base32));
y(4,4) = mean(logdata_fxp_base32.Decoder(idx_fxp_base32));
% S2.14 Approx MUL32
y(5,1) = mean(logdata_fxp_approx32.Demod_Opt(idx_fxp_approx32));
y(5,2) = delay;
y(5,3) = mean(logdata_fxp_approx32.Deinterleaver(idx_fxp_approx32));
y(5,4) = mean(logdata_fxp_approx32.Decoder(idx_fxp_approx32));
% Calculate speedup
for i=2:5
speedup(i) = round(base/(y(i,1) + y(i,2) + y(i,3) + y(i,4)), 2);
end
% Bar graph
figure;
% colororder([0 0 0]);
% x = ["FLP Base" "FXP S2.14 Base" "FXP S2.14 Approx"];
b = bar(y, "stacked", "BarWidth", 0.4, "EdgeColor", "none");
% xticklabels({});
x_labels = ["FLP64-B64", ...
"FXP16-B16", "FXP16-A16", "FXP16-B32", "FXP16-A32"];
set(gca, "XTickLabel", x_labels);
% b(1).FaceColor = navy_blue;
% b(2).FaceColor = steel_blue;
% b(3).FaceColor = powder_blue;
% b(4).FaceColor = sky_blue;
b(1).FaceColor = blue80;
b(2).FaceColor = teal50;
b(3).FaceColor = purple50;
b(4).FaceColor = magenta70;
% b(5).FaceColor = royal_blue;
ylabel("Execution Time [ms]");
xlabel("Demodulator Implementation");
% Add speedup for fxp16
xtips1 = b(4).XEndPoints;
ytips1 = b(4).YEndPoints;
labels1 = string("$\times$" + speedup);
labels1(1) = " ";
text(xtips1, ytips1, labels1, "HorizontalAlignment", "left",...
"VerticalAlignment", "bottom", "FontSize", 7, "Rotation", 45)
% x = [0 1.5 1.5 0];
% y = [0 0 b(4).YEndPoints(1) b(4).YEndPoints(1)];
% patch(x,y,'blue', 'FaceAlpha',.1, "EdgeColor", "none");
%
%
% x = [1.5 4.5 4.5 1.5];
% y = [0 0 b(4).YEndPoints(1) b(4).YEndPoints(1)];
% patch(x,y,'red', 'FaceAlpha',.1, "EdgeColor", "none");
% Misc plot settings
% -----------------------------
% title("Receiver with LDPC at " + iter + " Iterations - QAM64 (N = 64800)");
% grid on;
ax = gca;
ax.XGrid = 'off';
ax.YGrid = 'on';
% ax.GridLineStyle = "--";
% xlabel("Modulation type");
legend("Demodulator", "Align", "De-interleaver", "LDPC (" + iter + " Iter)",...
"Location", "northoutside", "Orientation", "horizontal");
% Set vertical lines for seperating implementations
xline(1.5, '--', 'HandleVisibility','off');
set(gca, 'TickLabelInterpreter','latex');
set(gcf, 'Position', [10, 10, 510, 290]);
% saveas(gca, "plots/rx_ldpc" + iter + "_qam64", "epsc");
saveas(gcf, "plots/rx_ldpc" + iter + "_qam16.pdf");
system("sudo pdfcrop plots/rx_ldpc" + iter + "_qam16.pdf plots/rx_ldpc" + iter + "_qam16.pdf");
save("data");
end