Yes. As long as there is some form of Internet connection, wired or wireless, Simulink will be able to talk to Raspberry Pi. For your information, I use an Edimax nano wireless adapter plugged directly to one of the USB ports of my R-Pi. Note that not all wireless network adapters are compatible with R-Pi. I have a bunch of them. In my opinion, Edimax works the best.
The default firmware image shipped as part of the Simulink Support Package for Raspberry Pi is already configured to accommodate a wireless network adapter. Plug-in your wireless network adapater to the board, reboot and just start the "WiFi Config" utility on your R-Pi desktop. Then you can scan available networks and connect to the one you want.
If you are using the "Wifi Config" GUI, skip steps 6 & 7.
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