Traffic exchanges are against Google's TOS, so if you don't care about your AdSense account being canceled permanently, you can go that route.
First of all, you need to actually build some Hubs! (I notice you have zero) Make sure they comply with the site rules so they don't get unpublished (which may have happened in this case).
If the Hubs are well-written and useful with strong keywords, they will draw traffic all on their own. And then you can build backlinks if you so choose.