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Explain the role of Repeaters. OR Describe how repeaters can be used for range extension in cellular systems.

Subject: Mobile Computing

Difficulty: Medium

Marks: 4 Marks


1 Answer
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  • The use of repeater in cellular mobile communication system is for extending the range of the reception of the receiver.
  • Especially, the repeater is used when it is hard for the transmitted signal to reach up to the receiver set.
  • Repeaters are bidirectional in nature and simultaneously send signals to and receive signals from a serving BS. Upon receiving signals from BSs in forward link, the repeater amplifies and reradiates the BS signals to the specific coverage region.
  • Repeaters are being widely used to provide coverage into and around buildings, where coverage has been traditionally weak.
  • Repeaters do not add any capacity to the system, they just increase the reach of a BS or MS into shadowed areas.

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