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IEEE TRANSACTIONS ON WIRELESS COMMUNICATIONS, VOL. , NO. , 2009 1 Error Vector Magnitude to SNR Conversion for
 

Summary: IEEE TRANSACTIONS ON WIRELESS COMMUNICATIONS, VOL. , NO. , 2009 1
Error Vector Magnitude to SNR Conversion for
Nondata-Aided Receivers
Hisham A. Mahmoud and H¨useyin Arslan
Abstract--Error vector magnitude (EVM) is one of the widely
accepted figure of merits used to evaluate the quality of communi-
cation 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

  

Source: Arslan, Hüseyin - Department of Electrical Engineering, University of South Florida

 

Collections: Engineering