CP-OFDM vs DFT-S-OFDM | Difference between CP-OFDM and DFT-S-OFDM waveforms in 5G

This page compares CP-OFDM vs DFT-S-OFDM waveforms used in 5G NR and mentions difference between CP-OFDM and DFT-S-OFDM waveforms used in 5G NR downlink and uplink chains.

5G NR CP-OFDM chain


• The figure-1 depicts CP-OFDM waveform. It is used in downlink and uplink chains in physical layer of 5G NR system.
• It is used for high throughput scenario.
• It is intended for MIMO (Multiple Input Multiple Output).
• They are like Gold sequences as used in PDSCH.
• CP-OFDM offers very high spectral packing efficiency in RBs (Resource blocks). It is employed when network operators need to maximize network capacity in dense urban environments.

5G NR DFT-s-OFDM chain

DFT-s-OFDM chain

• The figure-1 depicts DFT-s-OFDM waveform. It is used in uplink chain in physical layer of 5G NR system as used in LTE uplink.
• It is used for power limited scenario.
• It is only used in single layer transmission.
• They are like Zadoff chu sequences used in uplink.
• Though it offers less efficient spectral packing, it is used to address greater range requirements.

OFDM Related links including OFDM MATLAB Code

OFDM vs f-OFDM   OFDM physical layer as per wimax   OFDMA Physical layer   SC vs OFDM   OFDM vs OFDMA   SC-FDMA vs OFDM   OFDM vs FBMC   NOMA vs OFDMA   OFDM MATLAB code   OFDMA MATLAB code

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This 5G tutorial also covers following sub topics on the 5G technology:
LTE tutorial
5G tutorial
What is 5G NR
5G TF Protocol Stack
5G testing and test equipments
5G network architecture
5G millimeter wave
5G channel sounding

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