MIMO OFDM/A中基于PTS和裁剪混合方案的恒模PAPR降低算法

2016 International Conference on Micro-Electronics and Telecommunication Engineering (ICMETE) Pub Date : 2016-09-01 DOI:10.1109/ICMETE.2016.87

Rashmi Verma, L. Tharani

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引用次数: 2

摘要

正交频分复用(OFDM)可以与发射端和接收端的天线阵列相结合，以增加分集增益和系统对时变和频率选择信道的能力，从而形成多输入多输出结构。MIMO-OFDM的主要缺点是峰值平均功率比(PAPR)过高，导致频扩频谱和带内失真。这是由于高功率放大器中存在非线性。本文提出了一种PTS和CP的混合技术来降低PAPR。使用QAM调制MIMO-OFDM系统和2×2天线数，观察到所提出的技术具有更好的降低PAPR的性能。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

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Constant Modulus Algorithm for PAPR Reduction Using PTS and Clipping Hybrid Scheme in MIMO OFDM/A

Orthogonal frequency division multiplexing (OFDM) may be combined with antenna arrays at the transmitter and receiver side to increase the diversity gain and system competence on time variant along with the frequency selective channels, which results in a multiple-input multiple-output composition. The major drawback in case of MIMO-OFDM is its high value of Peak to Average Power Ratio (PAPR) which causes to frequency spread spectrum along with the in-band distortion. This is due to the presence of nonlinearity in the high power amplifiers. In this paper, a hybrid technique of PTS and CP is proposed for PAPR reduction. Using the QAM modulated MIMO-OFDM systems and 2×2 number of antennas, it has been observed that the proposed technique has better performance for PAPR reduction.

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2016 International Conference on Micro-Electronics and Telecommunication Engineering (ICMETE)

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