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44.pptx

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44.pptx

  1. 1. Introduction • Wireless communication • is the transfer of information between two or more points that are not connected by a physical wire. • The rapidly expanding technology of cellular communication, wireless LANs, and satellite services will make information accessible anywhere and at any time
  2. 2. Introduction The communication can be via • Radio - most common wireless technologies use radio waves • Covers from few meters to thousands or even millions of KMs • Free-space optical - uses light propagating in free space to transmit wirelessly data • Electromagnetic induction - has short range communication and power

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