bits = zeros(1,100);
j = 1;
for i = 1:length(decodedsymbols)
    if decodedsymbols(i) == -3
        bits(j:j+1) = [1,0];
    end
    if decodedsymbols(i) == -1
        bits(j:j+1) = [0,0];
    end
    if decodedsymbols(i) == 1
        bits(j:j+1) = [0,1];
    end
    if decodedsymbols(i) == 3
        bits(j:j+1) = [1,1];
    end
    j = j + 2;
end