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On The Quality Measurements of RF Signals Using GNU Radio for Software Defined Radio Implementations in Future RF Networks

机译:在未来RF网络中使用GNU无线电用于软件定义无线电实现的RF信号的质量测量

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This paper presents the evaluation of the signal quality based on the Error Vector Magnitude (EVM) online measurements for different radio access modulations implemented over the GNU radio platform for Software Defined Radio (SDR) developments. It is demonstrated that when a transmitted symbol is unknown by the receiver, the EVM can be calculated by measuring the closest distance between the received symbol and the ideal one of the analyzed digital constellation. The implementation of the EVM measurements through software development for multilevel digital modulations has enabled obtaining and assessing the Signal-to-Noise Ratio (SNR) and Bit Error Rate (BER) values. Results show that the SNR measurements accordingly depicts the expected behavior of the analyzed digital modulations and BER floor appears at high level modulation formats due to the way the EVM itself has been obtained.
机译:本文介绍了基于对软件定义的无线电(SDR)开发的GNU无线电平台实现的不同无线电接入调制的误差矢量幅度(EVM)在线测量的信号质量评估。据证明当接收器未知的发送符号未知时,可以通过测量所接收的符号之间的最近距离和分析的数字星座中的理想之一来计算EVM。通过对多级数字调制的软件开发实现EVM测量,使得能够获得和评估信噪比(SNR)和误码率(BER)值。结果表明,SNR测量相应地描绘了分析的数字调制的预期行为,并且由于EVM本身已经获得的方式,在高级调制格式上出现BER地板。

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