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hw4: done 1,2,3,4, and 5

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Claudio Maggioni 2020-05-30 16:33:19 +02:00
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@ -41,5 +41,8 @@ The AP may also decide to boost its transmission power if possible, thus increas
In alternative, if the station is in a ESS and another AP is present in the same subnet, the station may decide to hop from the first AP to the new AP if the latter has a better RSSI. If the DS uses switches, those should be informed of the change of BSS so as to keep their switching tables updated.
\section*{Exercise 5}
Collision detection is \textit{avoided} in IEEE 802.11 since collisions, contrary to IEEE 802.3 Ethernet, are expensive to detect since the power of a received message is significantly lower than the power of transmission. In addition, if collision detection was used scenarios like the hidden terminal problem would not have been avoided.
\end{document}