National University of Sciences and Technology, Islamabad, Pakistan;
Department of Electronic and Computer Engineering Brunel University, West London, UK;
Laboratoire de Conception Fabrication Commande, Ecole Nationale Supérieure d’Arts et Métiers, Metz, France;
Bluetooth; Localization; Navigation; Assistance; Received; Signal; Strength; Indicator; Visually; Impaired;