Analyses and performance of techniques PAPR reduction for STBC MIMO-OFDM system in (4G) wireless communication

TL;DR

This paper analyzes and compares various PAPR reduction techniques for STBC MIMO-OFDM systems in 4G wireless networks, highlighting the effectiveness of clipping and filtering.

Contribution

It provides a comparative analysis of PAPR reduction methods specifically for STBC MIMO-OFDM systems, with simulation results demonstrating their relative performance.

Findings

Clipping and filtering offers the best PAPR reduction among tested methods.

SLM technique maintains PAPR reduction effectiveness at the receiver.

Partial transmit sequence (PTS) is less effective than clipping and filtering.

Abstract

An OFDM system is combined with multiple-input multiple-output (MIMO) in order to increase the diversity gain and system capacity over the time variant frequency-selective channels. However, a major drawback of MIMO-OFDM system is that the transmitted signals on different antennas might exhibit high peak-to-average power ratio (PAPR).In this paper, we present a PAPR analysis reduction of space-timeblock-coded (STBC) MIMO-OFDM system for 4G wirelessnetworks. Several techniques have been used to reduce the PAPR of the (STBC) MIMOOFDM system: clipping and filtering, partial transmit sequence (PTS) and selected mapping (SLM). Simulation results show that clipping and filtering provides a better PAPR reduction than the others methods and only SLM technique conserve the PAPR reduction in reception part of signal.