When we talk about 5G evolution, conversations often focus on latency, bandwidth, or massive MIMO. But engineers know there’s a critical issue lurking beneath the surface—PAPR (Peak to Average Power Ratio).
In OFDM-based systems, high PAPR significantly degrades power amplifier efficiency, dropping it from 40% theoretical to just 8–12% in real-world scenarios. The impact? Reduced coverage, shorter battery life, and increased operational costs.
This Diagram shows :
-Subcarrier allocation in OFDM
-16-QAM symbol mapping
-Time-domain signal structure with cyclic prefix
-Spectral efficiency and power envelope
-PAPR = 6.73 dB and its consequences
-Comparison of major PAPR reduction techniquesTrade-offs between complexity, distortion, and power gain
As we move toward 6G and higher frequencies, power management will be as critical as bandwidth.
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