Design of an indoor localization system using device-free localization technique

The growth in location based services (LBS) and fast advancement in communication services has significantly increased the researchers interest in an area of the location determination. In the context-aware computing, one of the key competences is location determination. The accuracy has vital significance for localization estimation. The indoor environment requires higher degree of accuracy in comparison to the outdoor environment. The indoor environment is effected by reflection, refraction, diffraction and shadowing form obstacles by presenting difficult path to travel for RF signal. This fading and multipath propagation in radio frequency (RF) signal is because of different reasons like furniture, walls, the wired and wireless communication devices causing interference. These all problems are challenging and therefore motivate to develop an accurate indoor location estimation based on device-free location system. This research work focus to design an accurate indoor localization system for tracking the location of objects/human in indoor environment without use of any device attached.