Connecting my NAS to my router through Wifi

Hey everyone,

I'm really sorry if that kinda post already exists.
I've tried to find anything on the web that could help me, but as long as I'm noob on Linux (and French), it can be hard, sometimes, to get through technical documentation.

So, here is my problem :

I got my home made NAS.
It is now far from my router, so i have to put some wifi dongle to connect it.
But i dont know how to proceed.

My Wifi dongle is : Belkin N150 Surf USB Wireless Adapter.
Thanks to lsusb, i've found the chipset it uses : Realtek RTL8188CE-VAU.
And I got this information : F7D1102

I went to this page, selected the good chipset and followed this link.

And now, I dont know how to use the Linux drivers. I've downloaded the archive. But as you can see, I'm on another PC to post this.
So it seems i have to put it on a USB stick, plug it into the NAS, mount it, etc.
But I dont know how to do it

I would really appreciate your help.
I'm fed up I cant use my NAS since I've moved on

The package of the key is already open
And i wouldnt like to buy more stuff

For sure, I rather put an Ethernet cable.
What do you mean by Lan over Ethernet ? Is it like "CPL" in France ?

If yes, no I cant use that way. Because this house got an old electric system.
And a long Ethernet cable isnt possible because I dont own the house, and the cable would go through several rooms, and stairs.

There are two solutions left, to my mind :
Wifi, which seems to be very complicated.
Or move my NAS next to the router, but I got to ask the dudes I share the house with.

Okay so yeah Lan over Power = CPL in France.
And so, as I said, the connection through LoP would be amazingly shitty with the electric system we got in this house.

Last question : can I use that kinda stuff for wifi ?
I've tried it on my PC and it works good !

Else I'm gonna ask the dudes if I can put the NAS next to the router then.

I've listened to your advices.
And the NAS now is next to the router !

Thanks !