April 2016
Intermediate to advanced
506 pages
15h 9m
English
The recent need to be in permanent touch with others facilitated an enormous growth of wireless communication, both in terms of offer and service demand. In the past, cellular phones were used mainly for voice communication. A constant evolution of services allowed the massification of services such as short message services (SMS), multimedia messaging service (MMS), video call, and so on. Recently, mainly as a result of the implementation of the universal mobile telecommunication system (UMTS) by cellular operators, Internet access became possible, allowing a new myriad of services such as e-mail, video streaming, and web browsing, among others. In fact, the evolution from the second-generation cellular systems (2G) ...