A Low Complexity Non-Distortion Clipping Technique PAPR Reduction of MIMO-OFDM Systems

Tahreer Mahmood and Seshadri Mohan
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Tahreer Mahmood: University of Arkansas at Little Rock, USA
Seshadri Mohan: University of Arkansas at Little Rock, USA

International Journal of Interdisciplinary Telecommunications and Networking (IJITN), 2021, vol. 13, issue 4, 11-20

Abstract: Amplitude clipping is one of the techniques used to reduce PAPR. This technique does not demand side information; therefore, there is no reduction in the system's data throughput. However, it leads to additional distortion (in-band signal distortion and out-of-band radiation). To overcome this problem, low complexity non-distortion clipping technique is proposed for MIMO-OFDM system. The main concept of this proposed method is how to convert the generated distortion (in-band and out-of-band signals distortion) when using clipping at transmitter to impulse noise (error), which is possible by using a simple coding technique to cover error at the receiver. The proposed method does not clip the signal in time domain. The clipping use for discrete samples directly after IFFT. Simulation outcome detects that the proposed non-distortion clipping technique provides an efficient reduction in PAPR, best performance compared with conventional clipping technique, and less cost and complexity.

Date: 2021
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