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Wireless communication is the transfer of information over a distance without the use of enhanced electrical conductors or "Wires". The distances involved may be short (a few meters as in television remote control) or long (thousands or millions of kilometres for radio communications). When the context is clear, the term is often Shortened to "Wireless". It encompasses various types of fixed, mobile, and portable two-way radios, cellular telephones, Personal Digital Assistants (PDAs), and wireless networking. In this paper, the authors will throw light on the evolution and development of various generations of mobile wireless technology along with their significance and advantages of one over the other.
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