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首页> 外文期刊>Wireless Communications Letters, IEEE >Closed-Form BER Expression for (QAM or OQAM)-Based OFDM System With HPA Nonlinearity Over Rayleigh Fading Channel
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Closed-Form BER Expression for (QAM or OQAM)-Based OFDM System With HPA Nonlinearity Over Rayleigh Fading Channel

机译：在瑞利衰落信道上具有HPA非线性的（QAM或OQAM）基于OFDM系统的闭式BER表示

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摘要

Nonlinear distortions caused by high-power amplifiers are considered the key impairment in multicarrier techniques-based communication systems. However, there are few past investigations addressing their effect on the performance of filter bank multicarrier-based systems. In this letter, we derive a closed-form expression for the BER of Gray-coded -ary [quadrature amplitude modulation (QAM) or offset QAM] -based OFDM running under a frequency-flat-fading Rayleigh channel, which is valid for any memoryless nonlinearity model and can be evaluated without a numerical integration method.
机译：在基于多载波技术的通信系统中，高功率放大器引起的非线性失真被认为是关键的损害。但是，很少有研究针对它们对基于滤波器组多载波的系统的性能产生影响。在这封信中，我们推导了在频率衰减频率瑞利信道下运行的基于格雷编码的[正交幅度调制（QAM）或偏移QAM] OFDM的BER的闭式表达式，该表达式对于任何无记忆非线性模型，无需数值积分方法即可进行评估。

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