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首页> 外文期刊>International journal of engineering research and industrial applications >NOVEL TECHNIQUE FOR PAPR REDUCTION IN OFDM SYSTEM BASED ON SLM WITH CLIPPING SCHEME
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NOVEL TECHNIQUE FOR PAPR REDUCTION IN OFDM SYSTEM BASED ON SLM WITH CLIPPING SCHEME

机译：基于带裁剪方案的SLM的OFDM系统PAPR减少的新技术

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摘要

The rapid growth in multimedia-based applications have triggered an insatiable thirst for high data rates and hence increased demand on OFDM-based wireless systems that can support high data rates and high mobility. As the data rates and mobility supported by the OFDM system increase, the number of subcarriers also increase, which in turn leads to high PAPR. With a description of OFDM systems, the paper describes the most commonly encountered impediment of OFDM systems, the PAPR problem and consequent impact on power amplifiers leading to nonlinear distortion. As future OFDM based systems may push the number of subcaniers up to meet the higher data rates and mobility demands, there will be also a need to mitigate the high PAPR that arises. This paper will introduce various clipping techniques for PAPR reduction. Clipping with SLM gives better PAPR reduction than only simple individual various clipping techniques.
机译：基于多媒体的应用的快速增长引发了对高数据速率的不满足的需求，因此对能够支持高数据速率和高移动性的基于OFDM的无线系统的需求不断增加。随着OFDM系统支持的数据速率和移动性的增加，子载波的数量也增加，从而导致高PAPR。通过对OFDM系统的描述，本文描述了OFDM系统最常见的障碍，PAPR问题以及对功率放大器的影响，从而导致非线性失真。由于未来的基于OFDM的系统可能会增加子载波的数量以满足更高的数据速率和移动性要求，因此也需要减轻出现的高PAPR。本文将介绍各种降低PAPR的削波技术。与仅简单的各种裁剪技术相比，使用SLM裁剪可以更好地降低PAPR。

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