Basic wifi for 1500 sqft 3 BHK - 1.5k budget

[shady2pac]

If it were for basic wifi connectivity with goodsignal strength over an are of 1500sft 3 BHK, which of the following will suffice

http://www.flipkart.com/d-link-dsl-...tgtbawn?pid=RTRD4KY4UNGYCZFG&affid=sushubhgma
http://www.snapdeal.com/product/DLinkWirel/101995#bcrumbSearch:DIR 615
or is this just good enough..
http://www.flipkart.com/d-link-dir-...outer/p/itmdtg79yhtrykah?pid=RTRDTG78BGXPBE3H
My budget is 1500 but flexible.
Pls suggest.
Apologies to OP for jacking the thread.

 

[blr_p]

The thing is I don't have the faintest clue what features I require.

How many walls (how thick in inches) between the router and your intended client(s) ?