How does OFDM Overcome ISI?

Explains how the OFDM modulation format is less impacted by delay spread in a communications channel (Intersymbol Interference, ISI) compared to direct modulation. Related videos: (see www.iaincollings.com/) • What is a Cyclic Prefix in OFDM?    • What is a Cyclic Prefix in OFDM?   • What is Intersymbol Interference ISI?    • What is Intersymbol Interference ISI?   • Why is the OFDM Symbol Prefix Shorter in 5G Mobile and 802.11ac WiFi?    • Why is the OFDM Symbol Prefix Shorter...   • OFDM Waveforms    • OFDM Waveforms   • Why is Subcarrier Spacing Bigger in 5G Mobile Communications?    • Why is Subcarrier Spacing Bigger in 5...   • OFDM and the DFT    • OFDM and the DFT   • How are OFDM and xDSL (DMT) Related?    • How are OFDM and xDSL (DMT) Related?   • What is a Matched Filter?    • What is a Matched Filter?   • How are Different Equalization Methods Related? (DFE, ZF, MMSE, Viterbi, OFDM)    • How are Different Equalization Method...   • Viterbi Algorithm Explained with an Example    • Viterbi Algorithm Explained with an E...   • Autocorrelation and Power Spectral Density (PSD) Examples in Digital Communications    • Autocorrelation and Power Spectral De...   • How are Analog Filters and Digital Equalization Related?    • How are Analog Filters and Digital Eq...   • What are Flat Fading and Frequency Selective Fading?    • What are Flat Fading and Frequency Se...   • What are Doppler Shift, Doppler Spread, and Doppler Spectrum?    • What are Doppler Shift, Doppler Sprea...   For a full list of Videos and Summary Sheets, goto: www.iaincollings.com/ .

• #education
• #ofdm
• #isi
• #intersymbol_interference
• #delay_spread
• #equalization