a little to do with the speed.
And since you are talking about wireless signal, Line of Sight, Interference, Distance etc. become a factor in your speed/signal strenght.
I get my internet here in Argentina via Satellite at 128/64. It is expensive, almost US$200/month. I use a DLink DI-534 router. My question is, with these new routers out there, can they speed up things and when I am downloading, will I noticed a difference is getting a webpage on my screen. Thank you