Understanding OFDM

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This is 11th video in the series of course on OFDM and Signal Processing for 5G NR. OFDM is a backbone of modern communication technologies like 5G NR. This video describes the concept of OFDM. It also describes how OFDM overcomes frequency selective fading, Inter Symbol Interference(ISI). It also explains the meaning of orthogonality in OFDM, meaning of cyclic prefix and how OFDM uses cyclic prefix.
00:00 - What is OFDM
01:16 - How OFDM overcomes Frequency Selective Fading
20:38 - How OFDM is more spectral efficient, Meaning of orthogonality in OFDM
29:16 - Inter Symbol Interference (ISI)
43:12 - Cyclic Prefix
59:24 - Disadvantages of OFDM

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