Actually I have 2 house which are 5km apart from each other.At 1 house i have WiFi along with router,I want Internet connection from that house to 2 house which is 5 km away.What shall i do instead of using huge Ethernet Cable??
Get a second internet service for the other house if all else fails. Costs more, but if you can't get a long range WiFi setup working, you will have internet in both places.
You wont achieve 5km even with an ethernet cable. If you wanted to connect via copper then you could use a VDSL, at a push you might achieve a connection. If you have line of sight you could use a wireless point to point link. What you really want is to pay for a second connection then set up a VPN between the 2 sites.
The good news is you can get fairly inexpensive directional outdoor bridges that can go that kind of distance from companies like ubiquiti and engenius
Bad news is first you need clear line of sight and even with a massive open field between the 2 location you need towers on both ends at least 10m high. This is to avoid interference from signals reflected from the ground. If there are object in the way you likely need higher tower.
Assuming you do not have a government agency stopping you from putting up towers it still tends to not be a cost effective option.
There is actually a village around here where they only have crappy internet.
What they did was get a very fast contract outside and and send it over via directional WiFi, that works basically as far as you can look and there is nothing inbetween that might unterrupt the connection. Theybridge distances of over 20km.
You might try somthing similar. But you have to keep in mind that there has to be nothing inbeetwen, no house, no tree and defenately no high voltage line. And not only in the direct like of sight but also inside the so called fresnel zone.
Also where do you want to place that long cable, unless all that terrain is owned by one if the owners of the houses, those with ownership inbetween would need to acept having a big wire going through their yard.
Get a second internet service for the other house if all else fails. Costs more, but if you can't get a long range WiFi setup working, you will have internet in both places.