AFK/DC new system

We all have had an AFK player that ruined the game for everyone else on the team. In normals its not such a big problem since the only thing you lose is time and surrender is always an option. But when it comes to ranked, you lose LP, promos or even get demoted if you are unlucky. The new remake system is good, but it's restricted to only people who do not connect. Many players connect after 90 seconds and then disconnects for the rest of the game and thus the requirement for a remake is not met and the rest of team have to carry on 4v5.

League of Legends needs get a new/upgraded system that makes AFK players not just a free win for the enemy team.

Here is my solution:

1. The remake system is too specific. Here is a simple solution: If a player does not move out of the fountain within the 3 min mark, the affected team will get a option to remake the game or not.
2. Some players go AFK along the game. That is just as frustrating and ruins the game just as much. A remake mid game not possible so make so he affected team is not punished for some one else's McDonalds Wifi. Here is my solution: The affected team will get Loss Prevented if the AFK player is lvl 1 + 1 per 5 min starting at 5 min. Lets say a game ends at 15 min. If a players is still lvl 1-3 it is obivous he/her has been AFK for very long. For later in the game it will be lvl 4 for 20 min mark and lvl 6 for 30 min mark. This will help the affected team to stay in the game and play even if they know they will lose. They will fight to get the loss prevented instead of giving up on the spot. And of course the winning team wont play a game for 30 min just to get 0 LP. The winning team gets less LP than they normally would (maybe half).

Please let me know your thoughts and feel free to adjust some of my ideas or come with new ones.