diff --git a/ex08/kn08.pdf b/ex08/kn08.pdf
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+++ b/ex08/kn08.pdf
Binary files differ
diff --git a/ex08/kn08.tex b/ex08/kn08.tex
index 3970564..803f3ce 100644
--- a/ex08/kn08.tex
+++ b/ex08/kn08.tex
@@ -89,21 +89,84 @@
 \vspace{1cm}
 \Aufgabe{ALOHA, CSMA and CSMA/CD}{5+5+5+5}
 \begin{enumerate}
-	\item ALOHA with timeout $2 \cdot t_0$ 
+	\item ALOHA with timeout $2 \cdot t_0$
 	\item nonpersistent CSMA with timeout $2 \cdot t_0$
 	\item nonpersistent CSMA/CD with minimum waiting time $t_0$
 	\item $0.5$-persistent CSMA/CD with slot length $2 \cdot t_0$
 \end{enumerate}
-\Aufgabe{Code Division Multiple Access(CMDA)}{10+10+10}
+\Aufgabe{Code Division Multiple Access(CDMA)}{10+10+10}
 \begin{enumerate}
-	\item 
-	\item 
-	\item 
+	\item Generate Walsh-Tables for $n=8$:\\
+        \begin{math}
+            W_1=\begin{pmatrix}
+                -1
+            \end{pmatrix},\ W_2=\begin{pmatrix}
+                -1 & -1\\
+                -1 & 1
+            \end{pmatrix},\ W_4=\begin{pmatrix}
+                -1 & -1 & -1 & -1\\
+                -1 & 1 & -1 & 1\\
+                -1 & -1 & 1 & 1\\
+                -1 & 1 & 1 & -1\\
+            \end{pmatrix}\\
+            W_8=\begin{pmatrix}
+                -1 & -1 & -1 & -1&-1 & -1 & -1 & -1\\
+                -1 & 1 & -1 & 1&-1 & 1 & -1 & 1\\
+                -1 & -1 & 1 & 1&-1 & -1 & 1 & 1\\
+                -1 & 1 & 1 & -1&-1 & 1 & 1 & -1\\
+                -1 & -1 & -1 &-1&1 & 1 & 1 & 1\\
+                -1 & 1 & -1 & 1&1 & -1 & 1 & -1\\
+                -1 & -1 & 1 & 1&1 & 1 & -1 & -1\\
+                -1 & 1 & 1 & -1&1 & -1 & -1 & 1\\
+            \end{pmatrix}=\begin{pmatrix}
+                c_0&c_1&c_2&c_3&c_4&c_5&c_6&c_7
+            \end{pmatrix}
+        \end{math}
+	\item $c_2$ is orthogonal to all other chips:\\
+        \begin{math}
+            c_0\cdot c_2=\begin{pmatrix}
+                -1\\-1\\-1\\-1\\-1\\-1\\-1\\-1
+            \end{pmatrix}\cdot\begin{pmatrix}
+                -1\\-1\\1\\1\\-1\\-1\\1\\1
+            \end{pmatrix}=1+1-1-1+1+1-1-1=0\\
+            c_1\cdot c_2=\begin{pmatrix}
+                -1\\1\\-1\\1\\-1\\1\\-1\\1
+            \end{pmatrix}\cdot \begin{pmatrix}
+                -1\\-1\\1\\1\\-1\\-1\\1\\1
+            \end{pmatrix}=1-1-1+1+1-1-1+1=0\\
+            c_3\cdot c_2=\begin{pmatrix}
+                -1\\1\\1\\-1\\-1\\1\\1\\-1
+            \end{pmatrix}\cdot \begin{pmatrix}
+                -1\\-1\\1\\1\\-1\\-1\\1\\1
+            \end{pmatrix}=1-1+1-1+1-1+1-1=0\\
+            c_4\cdot c_2=\begin{pmatrix}
+                -1\\-1\\-1\\-1\\1\\1\\1\\1
+            \end{pmatrix}\cdot\begin{pmatrix}
+                -1\\-1\\1\\1\\-1\\-1\\1\\1
+            \end{pmatrix}=1+1-1-1-1-1+1+1=0\\
+            c_5\cdot c_2=\begin{pmatrix}
+                -1\\1\\-1\\1\\1\\-1\\1\\-1
+            \end{pmatrix}\cdot \begin{pmatrix}
+                -1\\-1\\1\\1\\-1\\-1\\1\\1
+            \end{pmatrix}=1-1-1+1-1+1+1-1=0\\
+            c_6\cdot c_2=\begin{pmatrix}
+                -1\\-1\\1\\1\\1\\1\\-1\\-1
+            \end{pmatrix}\cdot\begin{pmatrix}
+                -1\\-1\\1\\1\\-1\\-1\\1\\1
+            \end{pmatrix}=1+1+1+1-1-1-1-1=0\\
+            c_7\cdot c_2=\begin{pmatrix}
+                -1\\1\\1\\-1\\1\\-1\\-1\\1
+            \end{pmatrix}\cdot\begin{pmatrix}
+                -1\\-1\\1\\1\\-1\\-1\\1\\1
+            \end{pmatrix}=1-1+1-1-1+1-1+1=0\\
+            \Rightarrow c_2
+        \end{math} is orthogonal to all other chips.
+	\item
 \end{enumerate}
 \Aufgabe{Token Ring}{10+10}
 \begin{enumerate}
 	\item
-	\item 
+	\item
 \end{enumerate}
 \Aufgabe{Ethernet}{5+5+5+5+5+5}
 \begin{enumerate}