I have a TP-Link (TL-WR941ND) wireless router in my living room and I want to expand my connectivity to get to the bedrooms area. I have a D-link (DI-524)wireless G router I want to take advantage of.
How can I connect the two routers (no cables to be used) together so I can have acces to the internet from my room?
You cannot use the DI-524 as a wireless repeater, it does not have the capability.
You can use it as an AP if you run a CAT 5e cable or use a pair of powerline adapters (if you do that go with the 500mbps), or buy a wireless N router that does allow repeater mode.