PAPR REDUCTION IN CP-OFDM (5G) USING HYBRID TECHNIQUE

• Published in: Acta Polytechnica
• Main Author: Yusof A.; Idris A.; Abdullah E.
• Format: Article
• Language: English
• Published: Czech Technical University in Prague 2023
• Online Access: https://www.scopus.com/inward/record.uri?eid=2-s2.0-85179350545&doi=10.14311%2fAP.2023.63.0364&partnerID=40&md5=7650a46009c271c6516f417da68fa92c

The Cyclic Prefix Orthogonal Frequency Division Multiplexing (CP-OFDM) is a 5G multi-carrier waveform that offers great data speeds and improvements in spectrum utilisation. The primary CP-OFDM’s weakness is its excessive peak-to-average power ratio (PAPR), which is a characteristic of all multicarrier modulation techniques. We study the application of a hybrid technique approach how to lower the peak to average power ratio (PAPR) in a CP-OFDM system. We also evaluated the outcomes of peak to average power ratio (PAPR) decrease in CP-OFDM, utilising a hybrid technique with Group Codeword Shift (GCS), Median Codeword Shift, Selective Codeword Shift (SCS), and Conventional CP-OFDM. When compared to the non-hybrid technique, the simulation results indicate that the hybrid approach is superior in reducing the peak PAPR by more than 65 percent. © 2023 The Author(s).