ABSTRACT
This chapter elaborates on the most significant components in the smartphone usage, which is the space discovery paradigms, and discusses offline tracking applications. Rahmati and Zhong have conducted an analysis in which they installed logging software on mobile phones and distributed them to users for research. There are some fundamental differences and challenges between Mobile and Desktop Web application testing. The most complicated aspect of mobile application testing is device fragmentation. A social space takes into account usually the user's identity and personal information, location and time information, relevant to the situation or activity the user is currently involved in. Femtocell can be used as a communication mechanism for the Internet of Things paradigm, especially in the smart grid. The distinct advantages of ultrasound communication include controlled transmission range, limited locale, which does not require additional hardware on part of the user, and has modest implementation requirements.
