Paper Info
Title
Error vector magnitude to SNR conversion for nondata-aided receivers
Abstract
Error vector magnitude (EVM) is one of the widely accepted figure of merits used to evaluate the quality of communication systems. In the literature, EVM has been related to signal-to-noise ratio (SNR) for data-aided receivers, where preamble sequences or pilots are used to measure the EVM, or under the assumption of high SNR values. In this paper, this relation is examined for nondata-aided receivers and is shown to perform poorly, especially for low SNR values or high modulation orders. The EVM for nondata-aided receivers is then evaluated and its value is related to the SNR for quadrature amplitude modulation (QAM) and pulse amplitude modulation (PAM) signals over additive white Gaussian noise (AWGN) channels and Rayleigh fading channels, and for systems with IQ imbalances. The results show that derived equations can be used to reliably estimate SNR values using EVM measurements that are made based on detected data symbols. Thus, presented work can be quite useful for measurement devices such as vector signal analyzers (VSA), where EVM measurements are readily available.
Year
DOI
Venue
2009
10.1109/TWC.2009.080862
IEEE Transactions on Wireless Communications
Keywords
Field
DocType
high modulation order,vector signal analyzer,pulse amplitude modulation,nondata-aided receiver,iq imbalance,snr conversion,quadrature amplitude modulation,evm measurement,low snr value,error vector magnitude,high snr value,wireless communication,modulation,indexing terms,signal to noise ratio,testing,rayleigh fading,silicon,additive white gaussian noise,phase noise,binary phase shift keying,pulse modulation,probability density function,awgn,bit error rate,amplitude modulation,figure of merit
Rayleigh fading,Telecommunications,Quadrature amplitude modulation,Signal-to-noise ratio,QAM,Algorithm,Modulation,Real-time computing,Additive white Gaussian noise,Pulse-amplitude modulation,Mathematics,Phase-shift keying
Journal
Volume
Issue
ISSN
8
5
1536-1276
Citations 
PageRank 
References 
8
0.65
8
Authors
2
Name
Order
Citations
PageRank
Hisham A. Mahmoud127618.15
Hüseyin Arslan233233.33