Results 81 to 90 of about 3,213,319 (172)
Optimized Multiplicative Pre-Distortion PAPR Reduction Scheme for OTFS Signals
IEEE AccessWe present an iterative peak-to-average power ratio (PAPR) reduction scheme with multiplicative pre-distortion vectors for orthogonal time frequency space (OTFS) systems by making a compromise between the PAPR reduction and the bit error rate (BER ...
Feiyang Liu +2 more
doaj +1 more source
Error vector magnitude analysis of fading SIMO channels relying on MRC reception
We analytically characterize the data-aided Error Vector Magnitude (EVM) performance of a Single Input Multiple Output (SIMO) communication system relying on Maximal Ratio Combining (MRC) having either independent or correlated branches that are non ...
Kumar, Suman +5 more
core +1 more source
Generalised vector precoding design based on the MBER criterion for multiuser transmission
, 2010 A generalised vector precoding (VP) design based on the minimum bit error rate (MBER) criterion is proposed for multiuser transmission in the downlink of a multiuser system where the base station (BS) equipped with multiple transmit antennas communicates
Chen, Sheng, Hanzo, Lajos, Yao, Wang
core +2 more sources
To EVM or Two EVMs?: An Answer to the Question
, 2017 © 2009-2012 IEEE. Error vector magnitude (EVM) is a key indicator of modulated signal quality. It measures how far a transmitted or received constellation point is from its ideal Compared to other system-level specifications such as bit error rate, the ...
Vigilante, Marco +5 more
core +1 more source
Adversarial CSI Obfuscation Against Device-Free Activity Recognition in RIS-Assisted Systems
IEEE Open Journal of the Communications SocietyReconfigurable Intelligent Surfaces (RISs) extend 5G New Radio (NR) coverage by redirecting signals toward Non-Line-of-Sight regions, but the same reflected footprint exposes Channel State Information (CSI) to passive eavesdroppers, who can train a ...
Gabriele Restuccia +6 more
doaj +1 more source
VNA-based broadband EVM measurement of an RF nonlinear PA under load mismatch conditions
, 2020 In the context of modern communications systems operating at radio-frequency (RF), the error vector magnitude (EVM) is the most commonly adopted metric to quantify modulation distortion caused by a nonlinear device.
Traverso P. A. +3 more
core +1 more source
EVM and RSSI Link Quality Measurements in Frequency Selective Fading Channels
, 2020 -In this paper, we discuss the suitability of error vector magnitude (EVM) and received signal strength indicator (RSSI) as wireless quality metrics. We evaluate these metrics in a software defined radio testbed and provide detailed measurement results ...
Thomas Nitsche +3 more
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