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The Guard interval is provided in the OFDM symbol for____________ noise removal eliminating inter carrier interference eliminating inter symbol interference increase high data rate Why

  1. The Guard interval is provided in the OFDM symbol for____________
    1. noise removal
    2. eliminating inter carrier interference
    3. eliminating inter symbol interference
    4. increase high data rate

  1. Why is cyclic prefix is used in OFDM system?
    1. To ensure symbol time is an integer number
    2. To help overcome multipath and ISI
    3. To maintain orthogonality
    4. To make OFDMA scalable

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Principles of Communications Systems, Modulation and Noise

Principles of Communications Systems, Modulation and Noise

Authors: Rodger E. Ziemer, William H. Tranter

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978-1-118-0789, 1118078918, 978-8126556793

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