Using Old Router As An Extender With An Ethernet Connection Using an Ethernet cable makes it fairly simple to turn your old router into a Wi-Fi extender.

I wouldn't use it as a repeater, I'd use it as a wireless bridge. Basically you'll use your router as a wireless adapter for your PS3's ethernet port.

It's Geek to Me: You have several options for extending your router's Wi-Fi signal over a larger area.

D-Link is at CES 2016 with its first Unified Wi-Fi Home Network Kit, which includes a AC4200 router and a AC1300 extender. It's expected to cost $370.