title: Best method to determin distance with WI-FI signal strength
body: <p>I start working in an android application that determin the position with the WI-FI Signal Strength.well i read a lot of theses and every time a found a new idea and new concepts ,and that made me confused about the method i'm going to choose.
  Finely i found in my point of view that the geometric technique like triangulation and trilateration are not bad.(i knew that to use those methods we need to be root at an android phone).</p>
  
  <p>I read a lot of question and answer about this topic , and i would like to know the opinion of people who worked in this domain, and what they think about my final conclusion.
  PS: i remaked that those questions where on 2011,2012..now we are on 2014 ,I hope that there will be a solution :)
  Thank you</p>