* = Sammobile unkown CSC 3IE - Ireland (3) ABS - Tunisia (TUNISIE TELECOM,TUNISIANA,Orange) * ACA - Ghana (MTN GH,VODAFONE,AIRTEL,GLO,TIGO,MTN CM,ORANGE CM,ORANGE CI,MTN CI,MOOV,KOZ (COMIUM),GREENN) ACG _ United States of America (ACG CSpire) ACR - Ghana (MTN,Vodafone,Tigo...
However, maintaining a desired positioning accuracy for these methods in the real-world environment is difficult because the methods assume that the RSS differences caused by heterogeneous mobile devices are constants. In complex indoor environments, the positioning effect of these methods are not ideal...