Introduction
to Mobile Communication Technology
What is Communication? Communication is the process of exchanging data between two or more entities. Communication can be defined as ―the purposeful activity of information exchange between two or more participants in order to convey or receive the intended meanings through a shared system of signs and semiotic rules. In the telecommunication industry, a communication system refers to a collection of disparate communication networks, transmission systems, relay stations, tributary stations and data terminal equipment (DTE) usually capable of interconnection and interoperation to form an integrated whole. The components of a communication system serve a common purpose, are technically compatible, use common procedures, respond to controls, and operate in union‖ [3]. Communication systems are designed along with the implementation of specific data transmission and reception technologies. This means that the end device in the system (mobile phones) must have the kind of radio access technologies that are compatible with the implemented technology within the communication system. The technology specification implemented by carrier companies determines the kind of radio access a mobile phone has to the network. The RF components in any given phone vary in both sophistication and complexity depending on the access technology standard they can connect to. In recent times, multiple mode access phones are commonplace. Curiously, there exists no backward compatibility to older systems with the invention of newer technologies. The word ‗mobile‘ is derived from the Latin word mobilis – which means ―to move‖, ―able to move freely or easily‖, ―able or willing to move freely or easily between occupations, places of residence and social classes‖ [4].
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