Presentation wireless communication

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Presentation wireless communication

  1. 1. Wireless communication is the transfer of information between two or more points that are not connected by an electrical conductor.
  2. 2. HISTORY OF WIRELESS COMMUNICATION  Guglielmo Marconi invented the wireless telegraph in 1896   Communication by encoding alphanumeric characters in analog signal Sent telegraphic signals across the Atlantic Ocean 1914 – first voice communication over radio waves  Communications satellites launched in 1960s  Advances in wireless technology    Radio, television, mobile telephone, communication satellites More recently  Satellite communications, wireless networking, cellular technology
  3. 3. TYPES OF WIRELESS COMMUNICATION
  4. 4. WIRELESS SYSTEMS: RANGE COMPARISON 1 m 10 m 100 m Bluetooth 1 Km WLANs 10 Km Mobile Telephony 100 Km 1,000 Km MW SW Satellite FM Radio Radio Radio Links
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