diff --git a/ex10/kn10.pdf b/ex10/kn10.pdf index 826b70f..8838fca 100644 --- a/ex10/kn10.pdf +++ b/ex10/kn10.pdf Binary files differ diff --git a/ex10/kn10.tex b/ex10/kn10.tex index 810210a..475bf9a 100644 --- a/ex10/kn10.tex +++ b/ex10/kn10.tex @@ -108,16 +108,12 @@ \end{array} $ \end{center} - \item Packet p6 is the first which is out-of-profile. This packet is delayed and appended to the waiting queue. Each time a token is added to the bucket, the system tries to send this delayed packet. Simultaneously incoming packets which are not in the queue are preferred. At time $t=3$ the buckets content is $C=1$ and packet p7 is arriving, consuming the last token. Therefore, the packets in the queue have to wait again. At $t=3.5$ the buckets content is $C=0$, the arriving packet p8 is delayed and appended to the waiting queue. At time $t=4$, the bucket contains again $C=1$, this last token is consumed by incoming packet p9. Thus, the queue does not change.% At time $t=4.5$ no new packet is incoming, since no token is added, $C=0$ stays the same. - At time $t=5$ the bucket contains is $C=1$. No new packet is incoming, therefore the delayed packet p6 can finally be sent consuming the token. - % At time $t=5.5$, to token is added and no packet is incoming, $C=0$ stays the same. - At time $t=6$ the bucket contains is $C=1$, since no packet is incoming, the delayed packet p8 can finally be sent consuming the last token.\\ - %TODO: aren't packages in queue sent first? - By this we get the following times for transmission:\\ + \item Packet p6 is the first which is out-of-profile. This packet is delayed and appended to the waiting queue. Each time a token is added to the bucket, the system tries to send this delayed packet.\\ + Each arriving package is enqueued. By this we get the following times for transmission:\\ \begin{tabular} {c|ccccccccc} p & p1 & p2 & p3 &p4 & p5 & p6 & p7 & p8 & p9\\\hline - t & 0 &0.5 & 1 &1.5&2 & 5 & 3 & 6 & 4 + t & 0 &0.5 & 1 &1.5&2 & 3 & 4 & 5 & 6 \end{tabular} \end{enumerate}\pagebreak \Aufgabe{Wi-Fi - Problems}{5+10+5} @@ -131,14 +127,16 @@ \begin{center} \includegraphics[width=\textwidth]{exposedstation.png} \end{center} + %TODO: Quellen \end{enumerate} \Aufgabe{Wi-Fi - CSMA/CA, RTS/CTS}{10+10+10} +%TODO: labled figure \begin{enumerate} \item Time to transmit one packet and receiving the acknowledgment: \begin{align*} T_1 &= \frac{l_d}{N_d} + \frac{l_a}{N_a} \\ - &= \frac{12000~bit}{11 \cdot 10^{6} ~Mbit/s} + \frac{112~bit}{1 \cdot 10^{6} ~Mbit/s} \\ - &= \frac{12}{11} \cdot 10^{-3} + 0.112 \cdot 10^{-3} \\ + &= \frac{12000~bit}{11 \cdot 10^{6} ~bit/s} + \frac{112~bit}{1 \cdot 10^{6} ~bit/s} \\ + &= \frac{12}{11} \cdot 10^{-3}s + 0.112 \cdot 10^{-3}s \\ &= 1.203 ms \end{align*} The maximum throuput $D_1$ in $bit/s$ is therefore: