• Komal Kumari
• Prof. Suresh. S. Gawande

Nowadays, the communication system with a high data rate, high spectral efficiency and a high quality of service are in demand. These features can be achieved when a transmission system has low inter-symbol interference (ISI), immunity to the multipath delay and frequency selective fading, effective utilization of network resources and available spectrum. The Orthogonal Frequency Division Multiplexing (OFDM) is one of the best modulation techniques to achieve these features as well as an encouraging choice for upcoming high data rate communication systems. Thus, OFDM is widely employed in a wired and wireless communication system. This thesis describes the problem of high Peak-to-Average Power Ratio (PAPR) which is a major disadvantage of OFDM and presents different novel algorithms to reduce it with the improved performance of Bit Error Rate (BER). In this paper hybrid discrete cosine transform (DCT) and companding, for two antennas MIMO-OFDM system, is proposed which can achieve better PAPR performance at much less bit error rate (BER). Simulation results show that the proposed approach can reduce BER and achieve a better PAPR reduction compared to previous technique.

PTS, DCT, COMPANDING, MIMO-OFDM, PAPR, BER

"PAPR Reduction of Beamforming based Massive System using Hybrid Technique for Mm-wave Communication", International Journal of Emerging Technologies and Innovative Research (www.jetir.org), ISSN:2349-5162, Vol.10, Issue 1, page no.d698-d703, January-2023, Available :http://www.jetir.org/papers/JETIR2301385.pdf

"PAPR Reduction of Beamforming based Massive System using Hybrid Technique for Mm-wave Communication", International Journal of Emerging Technologies and Innovative Research (www.jetir.org | UGC and issn Approved), ISSN:2349-5162, Vol.10, Issue 1, page no. ppd698-d703, January-2023, Available at : http://www.jetir.org/papers/JETIR2301385.pdf