\documentclass[10pt,a4paper,oneside,ngerman,numbers=noenddot]{scrartcl} \usepackage[T1]{fontenc} \usepackage[utf8]{inputenc} \usepackage[ngerman]{babel} \usepackage{amsmath} \usepackage{amsfonts} \usepackage{amssymb} \usepackage{paralist} \usepackage[locale=DE,exponent-product=\cdot ,detect-all]{siunitx} \usepackage{tikz} \usepackage[scaled=0.78]{luximono} \usepackage{listings} \usetikzlibrary{automata,matrix,fadings,calc,positioning,decorations.pathreplacing,decorations.text,arrows} \pagenumbering{arabic} \def\thesection{5.\arabic{section})} \def\thesubsection{(\alph{subsection})} \def\thesubsubsection{(\arabic{subsubsection})} \renewcommand{\labelenumi}{(\roman{enumi})} \hyphenation{Nach-komma-stel-len} \lstnewenvironment{java}[1][]{% \lstset{basicstyle=\ttfamily ,backgroundcolor=\color[gray]{.95},columns=flexible,fontadjust=true,language=Java,tabsize=4,numbers=none,#1}% }{% } \tikzstyle{huffmanNodes}=[matrix of nodes, nodes={circle,thin,draw=black!20,minimum size=10mm,text height=1.5ex,text depth=.25ex,inner sep=-10pt}] \tikzstyle{huffmanBase}=[matrix of nodes, nodes={minimum size=10mm,text height=1.5ex,text depth=.25ex,inner sep=-10pt}] \begin{document} \author{Jim Martens (Matrikelnummer 6420323) \and Marlo Kornblum (Matrikelnummer 6427301)} \title{Rechnerstrukturen Aufgabenblatt 5} \maketitle \section{}%5.1 \begin{java} int a1, a2, a3, a4; int b1 = (a1 << 2) | (a2 >>> 4); int b2 = (a2 << 4) | (a3 >>> 2); int b3 = (a3 << 6) | a4; ... \end{java} \section{}%5.2 \subsection{} %a Der Code hat $\frac{360^{\circ}}{15^{\circ}}=24$ Codewörter. \subsection{} %b Wir starten mit den beiden Symbolen $0$ und $1$. Daraus ergibt sich in weiteren Schritten folgendes: \begin{alignat*}{2} 0, & 1 \\ 00, 01, & 11, 10 \\ 000, 001, 011, 010, & 110, 111, 101, 100 \\ 0000, 0001, 0011, 0010, 0110, 0111, 0101, 0100, & 1100, 1101, 1111, 1110, 1010, 1011, 1001, 1000 \end{alignat*} \begin{alignat*}{2} \intertext{Nachfolgend der erste Teil der fünften Zeile} 00000, 000001, 00011, 00010, 00110, 00111, 00101, 00100,\\ \intertext{Der zweite Teil} 01100, 01101, 01111, 01110, 01010, 01011, 01001, 01000,\\ \intertext{Und nun der dritte Teil} 11000, 11001, 11011, 11010, 11110, 11111, 11101, 11100,\\ \intertext{Abschließend der vierte Teil} 10100, 10101, 10111, 10110, 10010, 10011, 10001, 10000 \end{alignat*} Die zuletzt dargestellte Zeile enthält $32$ Codewörter. Da wir nur $24$ benötigen, werden beidseitig $4$ weggestrichen. Damit bleibt die Fano-Bedingung erfüllt. Das Ergebnis ist dieser Code (auf zwei Zeileneinträge aufgeteilt): \begin{alignat*}{2} 00110, 00111, 00101, 00100, 01100, 01101, 01111, 01110, 01010, 01011, 01001, 01000, \\ 11000, 11001, 11011, 11010, 11110, 11111, 11101, 11100, 10100, 10101, 10111, 10110 \end{alignat*} \section{}%5.3 \subsection{} %a Es ergeben sich die folgenden Codes: \begin{tikzpicture} \matrix[matrix of nodes] {a & b & c & d & e & f & g & h & i & j & k & l \\ $100$ & $01011$ & $01000$ & $00$ & $010010$ & $1011$ & $111$ & $010011$ & $01010$ & $110$ & $011$ & $1010$ \\}; \end{tikzpicture} \begin{figure}[hbp] Erster Schritt: \begin{tikzpicture}[shorten >=1pt,node distance=1.1cm,on grid,auto,/tikz/initial text=] %level 1 \node[state] (e) {e}; \node[state] (h) [right=of e] {h}; \node[state] (b) [right=of h] {b}; \node[state] (i) [right=of b] {i}; \node[state] (c) [right=of i] {c}; \node[state] (f) [right=of c] {f}; \node[state] (l) [right=of f] {l}; \node[state] (g) [right=of l] {g}; \node[state] (j) [right=of g] {j}; \node[state] (a) [right=of j] {a}; \node[state] (k) [right=of a] {k}; \node[state] (d) [right=of k] {d}; %level 2 \node[state] (eh) [above right=1.3 and 0.6 of e] {$0.04$}; \path[every node/.style={font=\scriptsize}] (e) edge node [near start] {$1$} (eh) (h) edge node [near end] {$0$} (eh); %\draw[decorate,decoration={text along path,text=$0.02$] (e) -- (eh); \node (pE) [below=0.7 of e] {0.02}; \node (pH) [below=0.7 of h] {0.02}; \node (pB) [below=0.7 of b] {0.03}; \node (pI) [below=0.7 of i] {0.03}; \node (pC) [below=0.7 of c] {0.05}; \node (pF) [below=0.7 of f] {0.05}; \node (pL) [below=0.7 of l] {0.06}; \node (pG) [below=0.7 of g] {0.1}; \node (pJ) [below=0.7 of j] {0.1}; \node (pA) [below=0.7 of a] {0.12}; \node (pK) [below=0.7 of k] {0.12}; \node (pD) [below=0.7 of d] {0.3}; \end{tikzpicture} \end{figure} \begin{figure}[hbp] Zweiter Schritt: \begin{tikzpicture}[shorten >=1pt,node distance=1.1cm,on grid,auto,/tikz/initial text=, nodes={decoration={}} ] %level 1 \node[state] (e2) {e}; \node[state] (h2) [right=of e2] {h}; %level 2 \node[state] (eh2) [above right=1.3 and 0.6 of e2] {$0.04$}; \node[state] (i2) [left=of eh2] {i}; \node[state] (b2) [left=of i2] {b}; \node[state] (c2) [right=of eh] {c}; \node[state] (f2) [right=of c2] {f}; \node[state] (l2) [right=of f2] {l}; \node[state] (g2) [right=of l2] {g}; \node[state] (j2) [right=of g2] {j}; \node[state] (a2) [right=of j2] {a}; \node[state] (k2) [right=of a2] {k}; \node[state] (d2) [right=of k2] {d}; %level 3 \node[state] (bi2) [above right=1.3 and 0.6 of b2] {$0.06$}; \path[every node/.style={font=\scriptsize}] (e2) edge node [near start] {$1$} (eh2) (h2) edge node [near end] {$0$} (eh2) (b2) edge node [near start] {$1$} (bi2) (i2) edge node [near end] {$0$} (bi2); \node (pE2) [below=0.7 of e2] {0.02}; \node (pH2) [below=0.7 of h2] {0.02}; \node (pB2) [below=0.7 of b2] {0.03}; \node (pI2) [below=0.7 of i2] {0.03}; \node (pC2) [below=0.7 of c2] {0.05}; \node (pF2) [below=0.7 of f2] {0.05}; \node (pL2) [below=0.7 of l2] {0.06}; \node (pG2) [below=0.7 of g2] {0.1}; \node (pJ2) [below=0.7 of j2] {0.1}; \node (pA2) [below=0.7 of a2] {0.12}; \node (pK2) [below=0.7 of k2] {0.12}; \node (pD2) [below=0.7 of d2] {0.3}; \end{tikzpicture} \end{figure} \begin{figure}[hbp] Dritter Schritt: \begin{tikzpicture}[shorten >=1pt,node distance=1.1cm,on grid,auto,/tikz/initial text=] %level 2 \node[state] (e3) {e}; \node[state] (h3) [right=of e3] {h}; \node[state] (b3) [right=2.2 of h3] {b}; \node[state] (i3) [right=of b3] {i}; %level 3 \node[state] (eh3) [above right=1.3 and 0.6 of e3] {$0.04$}; \node[state] (c3) [right=of eh3] {c}; \node[state] (f3) [right=of c3] {f}; \node[state] (bi3) [right=of f3] {$0.06$}; \node[state] (l3) [right=of bi3] {l}; \node[state] (g3) [right=of l3] {g}; \node[state] (j3) [right=of g3] {j}; \node[state] (a3) [right=of j3] {a}; \node[state] (k3) [right=of a3] {k}; \node[state] (d3) [right=of k3] {d}; %level 4 \node[state] (ehc3) [above right=1.3 and 0.6 of eh3] {$0.09$}; \path[every node/.style={font=\scriptsize}] (e3) edge node [near start] {$1$} (eh3) (h3) edge node [near end] {$0$} (eh3) (b3) edge node [near start] {$1$} (bi3) (i3) edge node [near end] {$0$} (bi3) (eh3) edge node [near start] {$1$} (ehc3) (c3) edge node [near end] {$0$} (ehc3); \node (pE3) [below=0.7 of e3] {0.02}; \node (pH3) [below=0.7 of h3] {0.02}; \node (pB3) [below=0.7 of b3] {0.03}; \node (pI3) [below=0.7 of i3] {0.03}; \node (pC3) [below=0.7 of c3] {0.05}; \node (pF3) [below=0.7 of f3] {0.05}; \node (pL3) [below=0.7 of l3] {0.06}; \node (pG3) [below=0.7 of g3] {0.1}; \node (pJ3) [below=0.7 of j3] {0.1}; \node (pA3) [below=0.7 of a3] {0.12}; \node (pK3) [below=0.7 of k3] {0.12}; \node (pD3) [below=0.7 of d3] {0.3}; \end{tikzpicture} \end{figure} \begin{figure}[hbp] Vierter Schritt: \begin{tikzpicture}[shorten >=1pt,node distance=1.1cm,on grid,auto,/tikz/initial text=] %level 2 \node[state] (e4) {e}; \node[state] (h4) [right=of e4] {h}; %level 3 \node[state] (eh4) [above right=1.3 and 0.6 of e4] {$0.04$}; \node[state] (i4) [left=of eh4] {i}; \node[state] (b4) [left=of i4] {b}; \node[state] (c4) [right=of eh4] {c}; %level 4 \node[state] (bi4) [above right=1.3 and 0.6 of b4] {$0.06$}; \node[state] (l4) [left=of bi4] {l}; \node[state] (f4) [left=of l4] {f}; \node[state] (ehc4) [right=2.2 of bi4] {$0.09$}; \node[state] (g4) [right=of ehc4] {g}; \node[state] (j4) [right=of g4] {j}; \node[state] (a4) [right=of j4] {a}; \node[state] (k4) [right=of a4] {k}; \node[state] (d4) [right=of k4] {d}; %level 5 \node[state] (fl4) [above right=1.3 and 0.6 of f4] {$0.11$}; \path[every node/.style={font=\scriptsize}] (e4) edge node [near start] {$1$} (eh4) (h4) edge node [near end] {$0$} (eh4) (b4) edge node [near start] {$1$} (bi4) (i4) edge node [near end] {$0$} (bi4) (eh4) edge node [near start] {$1$} (ehc4) (c4) edge node [near end] {$0$} (ehc4) (f4) edge node [near start] {$1$} (fl4) (l4) edge node [near end] {$0$} (fl4); \node (pE4) [below=0.7 of e4] {0.02}; \node (pH4) [below=0.7 of h4] {0.02}; \node (pB4) [below=0.7 of b4] {0.03}; \node (pI4) [below=0.7 of i4] {0.03}; \node (pC4) [below=0.7 of c4] {0.05}; \node (pF4) [below=0.7 of f4] {0.05}; \node (pL4) [below=0.7 of l4] {0.06}; \node (pG4) [below=0.7 of g4] {0.1}; \node (pJ4) [below=0.7 of j4] {0.1}; \node (pA4) [below=0.7 of a4] {0.12}; \node (pK4) [below=0.7 of k4] {0.12}; \node (pD4) [below=0.7 of d4] {0.3}; \end{tikzpicture} \end{figure} \begin{figure}[hbp] Fünfter Schritt: \begin{tikzpicture}[shorten >=1pt,node distance=1.1cm,on grid,auto,/tikz/initial text=] %level 3 \node[state] (e6) {e}; \node[state] (h6) [right=of e6] {h}; %level 4 \node[state] (eh6) [above right=1.3 and 0.6 of e6] {$0.04$}; \node[state] (i6) [left=of eh6] {i}; \node[state] (b6) [left=of i6] {b}; \node[state] (c6) [right=of eh6] {c}; \node[state] (f6) [right=2.2 of c6] {f}; \node[state] (l6) [right=of f6] {l}; %level 5 \node[state] (bi6) [above right=1.3 and 0.6 of b6] {$0.06$}; \node[state] (ehc6) [right=2.2 of bi6] {$0.09$}; \node[state] (g6) [right=of ehc6] {j}; \node[state] (j6) [right=of g6] {g}; \node[state] (fl6) [right=of j6] {$0.11$}; \node[state] (a6) [right=of fl6] {a}; \node[state] (k6) [right=of a6] {k}; \node[state] (d6) [right=of k6] {d}; %level 6 \node[state] (ehcbi6) [above right=1.3 and 1.1 of bi6] {$0.15$}; \path[every node/.style={font=\scriptsize}] (e6) edge node [near start] {$1$} (eh6) (h6) edge node [near end] {$0$} (eh6) (b6) edge node [near start] {$1$} (bi6) (i6) edge node [near end] {$0$} (bi6) (eh6) edge node [near start] {$1$} (ehc6) (c6) edge node [near end] {$0$} (ehc6) (f6) edge node [near start] {$1$} (fl6) (l6) edge node [near end] {$0$} (fl6) (bi6) edge node [near start] {$1$} (ehcbi6) (ehc6) edge node [near end] {$0$} (ehcbi6); \node (pE6) [below=0.7 of e6] {0.02}; \node (pH6) [below=0.7 of h6] {0.02}; \node (pB6) [below=0.7 of b6] {0.03}; \node (pI6) [below=0.7 of i6] {0.03}; \node (pC6) [below=0.7 of c6] {0.05}; \node (pF6) [below=0.7 of f6] {0.05}; \node (pL6) [below=0.7 of l6] {0.06}; \node (pG6) [below=0.7 of g6] {0.1}; \node (pJ6) [below=0.7 of j6] {0.1}; \node (pA6) [below=0.7 of a6] {0.12}; \node (pK6) [below=0.7 of k6] {0.12}; \node (pD6) [below=0.7 of d6] {0.3}; \end{tikzpicture} \end{figure} \begin{figure}[hbp] Sechster Schritt: \begin{tikzpicture}[shorten >=1pt,node distance=1.1cm,on grid,auto,/tikz/initial text=] %level 3 \node[state] (e7) {e}; \node[state] (h7) [right=of e7] {h}; %level 4 \node[state] (eh7) [above right=1.3 and 0.6 of e7] {$0.04$}; \node[state] (i7) [left=of eh7] {i}; \node[state] (b7) [left=of i7] {b}; \node[state] (c7) [right=of eh7] {c}; %level 5 \node[state] (bi7) [above right=1.3 and 0.6 of b7] {$0.06$}; \node[state] (l7) [left=1.65 of bi7] {l}; \node[state] (f7) [left=of l7] {f}; \node[state] (ehc7) [right=2.2 of bi7] {$0.09$}; %level 6 \node[state] (ehcbi7) [above right=1.3 and 1.1 of bi7] {$0.15$}; \node[state] (k7) [left=of ehcbi7] {k}; \node[state] (a7) [left=of k7] {a}; \node[state] (fl7) [left=of a7] {$0.11$}; \node[state] (j7) [left=of fl7] {j}; \node[state] (g7) [left=of j7] {g}; \node[state] (d7) [right=of ehcbi7] {d}; %level 7 \node[state] (gj7) [above right=1.3 and 0.6 of g7] {$0.2$}; \path[every node/.style={font=\scriptsize}] (e7) edge node [near start] {$1$} (eh7) (h7) edge node [near end] {$0$} (eh7) (b7) edge node [near start] {$1$} (bi7) (i7) edge node [near end] {$0$} (bi7) (eh7) edge node [near start] {$1$} (ehc7) (c7) edge node [near end] {$0$} (ehc7) (f7) edge node [near start] {$1$} (fl7) (l7) edge node [near end] {$0$} (fl7) (bi7) edge node [near start] {$1$} (ehcbi7) (ehc7) edge node [near end] {$0$} (ehcbi7) (g7) edge node [near start] {$1$} (gj7) (j7) edge node [near end] {$0$} (gj7); \node (pE7) [below=0.7 of e7] {0.02}; \node (pH7) [below=0.7 of h7] {0.02}; \node (pB7) [below=0.7 of b7] {0.03}; \node (pI7) [below=0.7 of i7] {0.03}; \node (pC7) [below=0.7 of c7] {0.05}; \node (pF7) [below=0.7 of f7] {0.05}; \node (pL7) [below=0.7 of l7] {0.06}; \node (pG7) [below=0.7 of g7] {0.1}; \node (pJ7) [below=0.7 of j7] {0.1}; \node (pA7) [below=0.7 of a7] {0.12}; \node (pK7) [below=0.7 of k7] {0.12}; \node (pD7) [below=0.7 of d7] {0.3}; \end{tikzpicture} \end{figure} \begin{figure}[hbp] Siebter Schritt: \begin{tikzpicture}[shorten >=1pt,node distance=1.1cm,on grid,auto,/tikz/initial text=] %level 4 \node[state] (e8) {e}; \node[state] (h8) [right=of e8] {h}; %level 5 \node[state] (eh8) [above right=1.3 and 0.6 of e8] {$0.04$}; \node[state] (i8) [left=of eh8] {i}; \node[state] (b8) [left=of i8] {b}; \node[state] (c8) [right=of eh8] {c}; %level 6 \node[state] (bi8) [above right=1.3 and 0.6 of b8] {$0.06$}; \node[state] (l8) [left=1.65 of bi8] {l}; \node[state] (f8) [left=of l8] {f}; \node[state] (ehc8) [right=2.2 of bi8] {$0.09$}; \node[state] (g8) [right=1.1 of ehc8] {g}; \node[state] (j8) [right=of g8] {j}; %level 7 \node[state] (gj8) [above right=1.3 and 0.6 of g8] {$0.2$}; \node[state] (ehcbi8) [left=2.75 of gj8] {$0.15$}; \node[state] (k8) [left=of ehcbi8] {k}; \node[state] (a8) [left=of k8] {a}; \node[state] (fl8) [left=1.1 of a8] {$0.11$}; \node[state] (d8) [right=of gj8] {d}; %level 8 \node[state] (fla8) [above right=1.3 and 0.6 of fl8] {$0.23$}; \path[every node/.style={font=\scriptsize}] (e8) edge node [near start] {$1$} (eh8) (h8) edge node [near end] {$0$} (eh8) (b8) edge node [near start] {$1$} (bi8) (i8) edge node [near end] {$0$} (bi8) (eh8) edge node [near start] {$1$} (ehc8) (c8) edge node [near end] {$0$} (ehc8) (f8) edge node [near start] {$1$} (fl8) (l8) edge node [near end] {$0$} (fl8) (bi8) edge node [near start] {$1$} (ehcbi8) (ehc8) edge node [near end] {$0$} (ehcbi8) (g8) edge node [near start] {$1$} (gj8) (j8) edge node [near end] {$0$} (gj8) (fl8) edge node [near start] {$1$} (fla8) (a8) edge node [near end] {$0$} (fla8); \node (pE8) [below=0.7 of e8] {0.02}; \node (pH8) [below=0.7 of h8] {0.02}; \node (pB8) [below=0.7 of b8] {0.03}; \node (pI8) [below=0.7 of i8] {0.03}; \node (pC8) [below=0.7 of c8] {0.05}; \node (pF8) [below=0.7 of f8] {0.05}; \node (pL8) [below=0.7 of l8] {0.06}; \node (pG8) [below=0.7 of g8] {0.1}; \node (pJ8) [below=0.7 of j8] {0.1}; \node (pA8) [below=0.7 of a8] {0.12}; \node (pK8) [below=0.7 of k8] {0.12}; \node (pD8) [below=0.7 of d8] {0.3}; \end{tikzpicture} \end{figure} \begin{figure}[hbp] Achter Schritt: \begin{tikzpicture}[shorten >=1pt,node distance=1.1cm,on grid,auto,/tikz/initial text=] %level 4 \node[state] (e9) {e}; \node[state] (h9) [right=of e9] {h}; %level 5 \node[state] (eh9) [above right=1.3 and 0.6 of e9] {$0.04$}; \node[state] (i9) [left=of eh9] {i}; \node[state] (b9) [left=of i9] {b}; \node[state] (c9) [right=of eh9] {c}; \node[state] (f9) [right=2.2 of c9] {f}; \node[state] (l9) [right=of f9] {l}; %level 6 \node[state] (bi9) [above right=1.3 and 0.6 of b9] {$0.06$}; \node[state] (ehc9) [right=2.2 of bi9] {$0.09$}; \node[state] (g9) [right=1.1 of ehc9] {g}; \node[state] (j9) [right=of g9] {j}; \node[state] (fl9) [right=of j9] {$0.11$}; \node[state] (a9) [right=of fl9] {a}; %level 7 \node[state] (gj9) [above right=1.3 and 0.6 of g9] {$0.2$}; \node[state] (ehcbi9) [left=2.75 of gj9] {$0.15$}; \node[state] (k9) [left=of ehcbi9] {k}; \node[state] (fla9) [right=2.2 of gj9] {$0.23$}; \node[state] (d9) [right=of fla9] {d}; %level 8 \node[state] (kehcbi9) [above right=1.3 and 0.6 of k9] {$0.27$}; \path[every node/.style={font=\scriptsize}] (e9) edge node [near start] {$1$} (eh9) (h9) edge node [near end] {$0$} (eh9) (b9) edge node [near start] {$1$} (bi9) (i9) edge node [near end] {$0$} (bi9) (eh9) edge node [near start] {$1$} (ehc9) (c9) edge node [near end] {$0$} (ehc9) (f9) edge node [near start] {$1$} (fl9) (l9) edge node [near end] {$0$} (fl9) (bi9) edge node [near start] {$1$} (ehcbi9) (ehc9) edge node [near end] {$0$} (ehcbi9) (g9) edge node [near start] {$1$} (gj9) (j9) edge node [near end] {$0$} (gj9) (fl9) edge node [near start] {$1$} (fla9) (a9) edge node [near end] {$0$} (fla9) (k9) edge node [near start] {$1$} (kehcbi9) (ehcbi9) edge node [near end] {$0$} (kehcbi9); \node (pE9) [below=0.7 of e9] {0.02}; \node (pH9) [below=0.7 of h9] {0.02}; \node (pB9) [below=0.7 of b9] {0.03}; \node (pI9) [below=0.7 of i9] {0.03}; \node (pC9) [below=0.7 of c9] {0.05}; \node (pF9) [below=0.7 of f9] {0.05}; \node (pL9) [below=0.7 of l9] {0.06}; \node (pG9) [below=0.7 of g9] {0.1}; \node (pJ9) [below=0.7 of j9] {0.1}; \node (pA9) [below=0.7 of a9] {0.12}; \node (pK9) [below=0.7 of k9] {0.12}; \node (pD9) [below=0.7 of d9] {0.3}; \end{tikzpicture} \end{figure} \begin{figure}[hbp] Neunter Schritt: \begin{tikzpicture}[shorten >=1pt,node distance=1.1cm,on grid,auto,/tikz/initial text=] %level 8 \node[state] [above right=5.2 and 3.6] (kehcbi10) {$0.27$}; \node[state] (fla10) [left=2.2 of kehcbi10] {$0.23$}; \node[state] (gj10) [left=2.2 of fla10] {$0.2$}; \node[state] (d10) [right=of kehcbi10] {d}; %level 7 \node[state] (ehcbi10) [below right=1.3 and 0.6 of kehcbi10] {$0.15$}; \node[state] (k10) [left=of ehcbi10] {k}; \node[state] (a10) [left=of k10] {a}; \node[state] (fl10) [left=of a10] {$0.11$}; \node[state] (j10) [left=of fl10] {j}; \node[state] (g10) [left=of j10] {g}; \node[state] (bi10) [below left=1.3 and 1.2 of ehcbi10] {$0.06$}; \node[state] (l10) [left=1.65 of bi10] {l}; \node[state] (f10) [left=of l10] {f}; \node[state] (ehc10) [right=2.2of bi10] {$0.09$}; \node[state] (eh10) [below left=1.3 and 0.6 of ehc10] {$0.04$}; \node[state] (i10) [left=of eh10] {i}; \node[state] (b10) [left=of i10] {b}; \node[state] (c10) [right=of eh10] {c}; \node[state] (e10) [below left=1.3 and 0.6 of eh10] {e}; \node[state] (h10) [right=of e10] {h}; %level 9 \node[state] (gjfla10) [above right=1.3 and 1.1 of gj10] {$0.43$}; \path[every node/.style={font=\scriptsize}] (e10) edge node [near start] {$1$} (eh10) (h10) edge node [near end] {$0$} (eh10) (b10) edge node [near start] {$1$} (bi10) (i10) edge node [near end] {$0$} (bi10) (eh10) edge node [near start] {$1$} (ehc10) (c10) edge node [near end] {$0$} (ehc10) (f10) edge node [near start] {$1$} (fl10) (l10) edge node [near end] {$0$} (fl10) (bi10) edge node [near start] {$1$} (ehcbi10) (ehc10) edge node [near end] {$0$} (ehcbi10) (g10) edge node [near start] {$1$} (gj10) (j10) edge node [near end] {$0$} (gj10) (fl10) edge node [near start] {$1$} (fla10) (a10) edge node [near end] {$0$} (fla10) (k10) edge node [near start] {$1$} (kehcbi10) (ehcbi10) edge node [near end] {$0$} (kehcbi10) (gj10) edge node [near start] {$1$} (gjfla10) (fla10) edge node [near end] {$0$} (gjfla10); \node (pE10) [below=0.7 of e10] {0.02}; \node (pH10) [below=0.7 of h10] {0.02}; \node (pB10) [below=0.7 of b10] {0.03}; \node (pI10) [below=0.7 of i10] {0.03}; \node (pC10) [below=0.7 of c10] {0.05}; \node (pF10) [below=0.7 of f10] {0.05}; \node (pL10) [below=0.7 of l10] {0.06}; \node (pG10) [below=0.7 of g10] {0.1}; \node (pJ10) [below=0.7 of j10] {0.1}; \node (pA10) [below=0.7 of a10] {0.12}; \node (pK10) [below=0.7 of k10] {0.12}; \node (pD10) [below=0.7 of d10] {0.3}; \end{tikzpicture} \end{figure} \begin{figure}[hbp] Zehnter Schritt: \begin{tikzpicture}[shorten >=1pt,node distance=1.1cm,on grid,auto,/tikz/initial text=] %level 4 \node[state] (e11) {e}; \node[state] (h11) [right=of e11] {h}; %level 5 \node[state] (eh11) [above right=1.3 and 0.6 of e11] {$0.04$}; \node[state] (i11) [left=of eh11] {i}; \node[state] (b11) [left=of i11] {b}; \node[state] (c11) [right=of eh11] {c}; \node[state] (f11) [right=2.2 of c11] {f}; \node[state] (l11) [right=of f11] {l}; %level 6 \node[state] (bi11) [above right=1.3 and 0.6 of b11] {$0.06$}; \node[state] (ehc11) [right=2.2 of bi11] {$0.09$}; \node[state] (g11) [right=of ehc11] {g}; \node[state] (j11) [right=of g11] {j}; \node[state] (fl11) [right=of j11] {$0.11$}; \node[state] (a11) [right=of fl11] {a}; %level 7 \node[state] (ehcbi11) [above right=1.3 and 1.2 of bi11] {$0.15$}; \node[state] (k11) [left=of ehcbi11] {k}; \node[state] (gj11) [right=2.75 of ehcbi11] {$0.2$}; \node[state] (fla11) [right=2.2 of gj11] {$0.23$}; %level 8 \node[state] (kehcbi11) [above right=1.3 and 0.6 of k11] {$0.27$}; \node[state] (d11) [right=of kehcbi11] {d}; \node[state] (gjfla11) [right=3.3 of d11] {$0.43$}; %level 9 \node[state] (kehcbid11) [above right=1.3 and 0.6 of kehcbi11] {$0.57$}; \path[every node/.style={font=\scriptsize}] (e11) edge node [near start] {$1$} (eh11) (h11) edge node [near end] {$0$} (eh11) (b11) edge node [near start] {$1$} (bi11) (i11) edge node [near end] {$0$} (bi11) (eh11) edge node [near start] {$1$} (ehc11) (c11) edge node [near end] {$0$} (ehc11) (f11) edge node [near start] {$1$} (fl11) (l11) edge node [near end] {$0$} (fl11) (bi11) edge node [near start] {$1$} (ehcbi11) (ehc11) edge node [near end] {$0$} (ehcbi11) (g11) edge node [near start] {$1$} (gj11) (j11) edge node [near end] {$0$} (gj11) (fl11) edge node [near start] {$1$} (fla11) (a11) edge node [near end] {$0$} (fla11) (k11) edge node [near start] {$1$} (kehcbi11) (ehcbi11) edge node [near end] {$0$} (kehcbi11) (gj11) edge node [near start] {$1$} (gjfla11) (fla11) edge node [near end] {$0$} (gjfla11) (kehcbi11) edge node [near start] {$1$} (kehcbid11) (d11) edge node [near end] {$0$} (kehcbid11); \node (pE11) [below=0.7 of e11] {0.02}; \node (pH11) [below=0.7 of h11] {0.02}; \node (pB11) [below=0.7 of b11] {0.03}; \node (pI11) [below=0.7 of i11] {0.03}; \node (pC11) [below=0.7 of c11] {0.05}; \node (pF11) [below=0.7 of f11] {0.05}; \node (pL11) [below=0.7 of l11] {0.06}; \node (pG11) [below=0.7 of g11] {0.1}; \node (pJ11) [below=0.7 of j11] {0.1}; \node (pA11) [below=0.7 of a11] {0.12}; \node (pK11) [below=0.7 of k11] {0.12}; \node (pD11) [below=0.7 of d11] {0.3}; \end{tikzpicture} \end{figure} \begin{figure}[h!] Elfter Schritt: \begin{tikzpicture}[shorten >=1pt,node distance=1.1cm,on grid,auto,/tikz/initial text=] %level 4 \node[state] (e12) {e}; \node[state] (h12) [right=of e12] {h}; %level 5 \node[state] (eh12) [above right=1.3 and 0.6 of e12] {$0.04$}; \node[state] (i12) [left=of eh12] {i}; \node[state] (b12) [left=of i12] {b}; \node[state] (c12) [right=of eh12] {c}; %level 6 \node[state] (bi12) [above right=1.3 and 0.6 of b12] {$0.06$}; \node[state] (l12) [left=1.65 of bi12] {l}; \node[state] (f12) [left=of l12] {f}; \node[state] (ehc12) [right=2.2 of bi12] {$0.09$}; %level 7 \node[state] (ehcbi12) [above right=1.3 and 1.2 of bi12] {$0.15$}; \node[state] (k12) [left=of ehcbi12] {k}; \node[state] (a12) [left=of k12] {a}; \node[state] (fl12) [left=of a12] {$0.11$}; \node[state] (j12) [left=of fl12] {j}; \node[state] (g12) [left=of j12] {g}; %level 8 \node[state] (kehcbi12) [above right=1.3 and 0.6 of k12] {$0.27$}; \node[state] (fla12) [left=2.2 of kehcbi12] {$0.23$}; \node[state] (gj12) [left=2.2 of fla12] {$0.2$}; \node[state] (d12) [right=of kehcbi12] {d}; %level 9 \node[state] (kehcbid12) [above right=1.3 and 0.6 of kehcbi12] {$0.57$}; \node[state] (gjfla12) [left=3.95 of kehcbid12] {$0.43$}; %level 10 \node[state] (gjflakehcbid12) [above right=1.3 and 2.0 of gjfla12] {$1$}; \path[every node/.style={font=\scriptsize}] (e12) edge node [near start] {$1$} (eh12) (h12) edge node [near end] {$0$} (eh12) (b12) edge node [near start] {$1$} (bi12) (i12) edge node [near end] {$0$} (bi12) (eh12) edge node [near start] {$1$} (ehc12) (c12) edge node [near end] {$0$} (ehc12) (f12) edge node [near start] {$1$} (fl12) (l12) edge node [near end] {$0$} (fl12) (bi12) edge node [near start] {$1$} (ehcbi12) (ehc12) edge node [near end] {$0$} (ehcbi12) (g12) edge node [near start] {$1$} (gj12) (j12) edge node [near end] {$0$} (gj12) (fl12) edge node [near start] {$1$} (fla12) (a12) edge node [near end] {$0$} (fla12) (k12) edge node [near start] {$1$} (kehcbi12) (ehcbi12) edge node [near end] {$0$} (kehcbi12) (gj12) edge node [near start] {$1$} (gjfla12) (fla12) edge node [near end] {$0$} (gjfla12) (kehcbi12) edge node [near start] {$1$} (kehcbid12) (d12) edge node [near end] {$0$} (kehcbid12) (gjfla12) edge node [near start] {$1$} (gjflakehcbid12) (kehcbid12) edge node [near end] {$0$} (gjflakehcbid12); \node (pE12) [below=0.7 of e12] {0.02}; \node (pH12) [below=0.7 of h12] {0.02}; \node (pB12) [below=0.7 of b12] {0.03}; \node (pI12) [below=0.7 of i12] {0.03}; \node (pC12) [below=0.7 of c12] {0.05}; \node (pF12) [below=0.7 of f12] {0.05}; \node (pL12) [below=0.7 of l12] {0.06}; \node (pG12) [below=0.7 of g12] {0.1}; \node (pJ12) [below=0.7 of j12] {0.1}; \node (pA12) [below=0.7 of a12] {0.12}; \node (pK12) [below=0.7 of k12] {0.12}; \node (pD12) [below=0.7 of d12] {0.3}; \end{tikzpicture} \end{figure} \subsection{} %b Mittlerer Informationsgehalt(Entropie): \begin{alignat*}{2} H &=& \sum\limits_{i} p_{i} \cdot \log_{2}{(\frac{1}{p_{i}})} \\ H &=& 2 \cdot (0.02 \cdot \log_{2}{(\frac{1}{0.02})}) + 2 \cdot (0.03 \cdot \log_{2}{(\frac{1}{0.03})}) \\ & & + 2 \cdot (0.05 \cdot \log_{2}{(\frac{1}{0.05})}) + (0.06 \cdot \log_{2}{(\frac{1}{0.06})})\\ & & + 2 \cdot ( 0.1 \cdot \log_{2}{(\frac{1}{0.1})}) + 2 \cdot (0.12 \cdot \log_{2}{(\frac{1}{0.12})})\\ & & + (0.3 \cdot \log_{2}{(\frac{1}{0.3})}) \\ H &\approx & 3.125 Bit \end{alignat*} \section{}%5.4 \subsection{} %a Codieren von Dezimalziffern auf 4-Bit Binärwörter: \begin{tikzpicture} \matrix[matrix of math nodes,nodes={rectangle,thin,draw=black!20,minimum size=10mm}] {0 & 1 & 2 & 3 & 4 & 5 & 6 & 7 & 8 & 9 \\ 0000 & 0001 & 0010 & 0011 & 0100 & 0101 & 0110 & 0111 & 1000 & 1001 \\}; \end{tikzpicture} 4 Binärstellen für 10 Codewörter, da maximal mögliche Anzahl von Codewörtern gleich $2^{4} = 16$. \begin{alignat*}{2} H_{0} &=& \log_{2}{(2^{4})} \\ H_{0} &=& 4 \\ \intertext{Also 4 Bit möglicher Informationsgehalt} H &=& 10 \cdot \frac{1}{10} \cdot \log_{2}{(\frac{1}{\frac{1}{10}})} \\ H &\approx & 3.32 \\ \intertext{Also rund 3.32 Bit mittlerer Informationsgehalt} R &=& H_{0} - H \\ R &=& 0.68 \intertext{Also rund 0.68 Bit Redundanz} \end{alignat*} \subsection{} %b Es werden $7$ bits verbraucht, da $2^{7}=128$ und $2^{6}=64$. Code für die Dezimalziffern 0-9: \begin{tikzpicture} \matrix[matrix of math nodes,nodes={rectangle,thin,draw=black!20,minimum size=10mm}] {0 & 1 & 2 & 3 & 4 & 5 & 6 & 7 & 8 & 9 \\ 00 & 01 & 02 & 03 & 04 & 05 & 06 & 07 & 08 & 09 \\}; \end{tikzpicture} Aufgrund der Formel $H_{0}=\log_{2}{2^{7}}=7$ gilt, dass der mögliche Informationsgehalt $7$ beträgt. Aufgrund der Formel $H = 100 \cdot \frac{1}{100} \cdot \log_{2}{(\frac{1}{\frac{1}{100}})} \approx 6.43$ beträgt der mittlere Informationsgehalt rund $6.43$ Bit. Daraus ergibt sich sich die Redundanz $R = H_{0} - H \approx 0.36$ Bit. Die Redundanz bezogen auf eine einzelne Dezimalziffer beträgt $\frac{R}{2} \approx 0.18$ Bit. \subsection{} %c Bei Gruppen von drei Ziffern werden $10$ Bits belegt. Dies ergibt sich aus $2^{10} = 1024$. Demzufolge ist der mögliche Informationsgehalt $H_{0}$ für alle Codewörter gleich $10$ Bit. Bezogen auf eine einzelne Ziffer sind es $\frac{10}{3}$ Bit. Bei Gruppen von vier Ziffern werden $14$ Bits belegt. Dies ergibt sich aus $2^{14}=16384$. Demzufolge ist der mögliche Informationsgehalt gleich $14$ Bit. Bezogen auf eine einzelne Ziffer sind es $\frac{14}{4} = \frac{7}{2} = 3.5$ Bit. Die Unterschiede ergeben sich durch unterschiedlich viele Kombinationsmöglichkeiten. Bei 3-er Gruppen gibt es $3^{10}$ und bei 4-er Gruppen $4^{10}$ mögliche Kombinationen. Demzufolge ist der mögliche Informationsgehalt pro Ziffer bei letzterem minimal höher. \subsection{} %d Code mit variabler Länge (Fano-Code): \begin{tikzpicture} \matrix[matrix of nodes] {0 & 1 & 2 & 3 & 4 & 5 & 6 & 7 & 8 & 9 \\ $000$ & $001$ & $010$ & $0110$ & $0111$ & $100$ & $101$ & $110$ & $1110$ & $1111$ \\}; \end{tikzpicture} \begin{alignat*}{2} P(a_{i}) &=& \frac{1}{10} \\ H_{0} &=& (\frac{1}{10} \cdot 4 \cdot \log_{2}{2^{4}}) + (\frac{1}{10} \cdot 6 \cdot \log_{2}{2^{3}}) \\ H_{0} &\approx & 1.6 + 1.8 = 3.4\, \text{Bit} \\ R &=& H_{0} - H \\ R &=& 0.08\,\text{Bit} \end{alignat*} Der Code wird noch effizienter, wenn x-beliebige Codewörter zu einem Codewort zusammengefasst werden. \end{document}