Sergey Ruseev

The rapid expansion of wireless access technologies, the implantation of the Internet into all spheres of human activity, and the pressure of mobile communication markets - these factors represent the development of wireless services. Standards for mobile communications have been developing rapidly in the last few years. The sequential appearance of analog (AMPS, NMT-450) and digital standards (GSM, D-AMPS, DCS), and their gradual movement to a universal standard, resulted in the formation of mobile communications companies all over the world. A new community of wireless subscribers is being created. New services, like roaming and data transfer, formed the basis for the globalization of services provided. Mobile subscribers need data availability. This is now possible due to wireless applications that have been developed based on standards that are applicable for an... (more)