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 http://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 in 5...  
• OFDM Waveforms    • OFDM Waveforms  
• Why is Subcarrier Spacing Bigger in 5G Mobile Communications?    • Why is Subcarrier Spacing Bigger in 5G Mob...  
• 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 Methods Rel...  
• Viterbi Algorithm Explained with an Example    • Viterbi Algorithm Explained with an Example  
• Autocorrelation and Power Spectral Density (PSD) Examples in Digital Communications    • Autocorrelation and Power Spectral Density...  
• How are Analog Filters and Digital Equalization Related?    • How are Analog Filters and Digital Equaliz...  
• What are Flat Fading and Frequency Selective Fading?    • What are Flat Fading and Frequency Selecti...  
• What are Doppler Shift, Doppler Spread, and Doppler Spectrum?    • What are Doppler Shift, Doppler Spread, an...  
For a full list of Videos and Summary Sheets, goto: http://www.iaincollings.com

.