An Efficient PTSDCT-LH PAPR Reduction Scheme for 5G Wireless Communication with OFDM Technology

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Dr. G. Srihari, Dr. D. Prasad, Mr. K. Hemambharam, Dr. K. Gopi


Background: 5G wireless communication provides the wireless communication involved in the provision of machine-to-machine communication, internet, reliable, minimal latency, and high-speed communication links. Orthogonal Frequency Division Multiplexing (OFDM) provides the promising 5G physical layer waveform for the application. The incorporation of the OFDM with 5G technology comprises the subcarriers, self-interference, and peak amplitude. The implementation of the 5G wireless technology exploits OFDM with the multicarrier scheme which exhibits a higher peak-to-average-power ratio (PAPR). As high PAPR affects the overall performance of the OFDM communication system with the signal distortion which affects the overall communication characteristics.

Objectives: This paper presented a PAPR reduction scheme stated as Partial Transmission Sequence Discrete Cosine transforms with Likelihood estimation PTSDCT-LH. The proposed PTSDCT- LH incorporates a Partial transmission sequence (PTS) integrated with Discrete Cosine transform (DCT).

Methods: The implementation of the proposed PTSDCT-LH model exhibits reduced PAPR with the application of the PTS but it increases the complexity of the process.  Finally, the proposed PTSDCT-LH model incorporated likelihood estimation the signal characteristics are computed. The simulation analysis of the proposed PTSDCT-LH model exhibits reduced PAPR by 30.3% compared with the conventional original and clipping signal.

Conclusions: The simulation results expressed that the proposed PTSDCT-LH model increases the system performance with the reduced computational complexity.

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