Authors : P. Sarthika; S. Avanthika; R. Karthikeya; M. Abhinav Reddy; Y. Prathyusha; D. Ramadevi

Volume/Issue : Volume 10 - 2025, Issue 4 - April

Google Scholar : https://tinyurl.com/3v63hnan

Scribd : https://tinyurl.com/yvck5th4

DOI : https://doi.org/10.38124/ijisrt/25apr1957

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Abstract : Wireless communication plays a vital role in modern life. Over time, and with the rise in user demands, the field of communication has experienced significant advancements. To enhance transmission efficiency, single-carrier wave systems are increasingly being replaced by multi-carrier wave technologies such as MIMO-OFDM, which has become widely adopted. The growing need for high-speed and reliable wireless communication is being addressed through the deployment of multiple antennas at both the base station and the user end. This multi-antenna configuration significantly enhances system capacity, particularly for internet and multimedia services, while also improving coverage and reliability. In a Multiple Input Multiple Output (MIMO) Orthogonal Frequency Division Multiplexing (OFDM) system, the Peak-to- Average Power Ratio (PAPR) presents several challenges that can negatively affect performance. This paper explores the concept of PAPR in OFDM systems, its impact on system efficiency, and reviews various methods designed to mitigate PAPR based on specific application requirements. These techniques aim to reduce PAPR without compromising bandwidth efficiency, Bit Error Rate (BER) performance, or the Complementary Cumulative Distribution Function .

Keywords : Amplitude Clipping, Cyclic Prefix, Filtering IDFT, PAPR, MIMO OFDM.

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