Results 271 to 280 of about 1,050,910 (295)

Error vector magnitude of OFDM signals caused by sampling clock jitter

Proceedings. 2004 IEEE Radio and Wireless Conference (IEEE Cat. No.04TH8746), 2005
In the next-generation mobile communication system where the signal bandwidth is very broad, the sampling frequency of a digital-to-analog converter (DAC) and an analog-to-digital converter (ADC) in a transceiver becomes high. So the signal quality is sensitive to the jitter of the sampling clock. The relation between the error vector magnitude and the
N. Ando, R. Hayashi, T. Takagi
openaire   +1 more source

On the formal identity of EVM and NPR measurement methods: Conditions for identity of error vector magnitude and noise power ratio

European Microwave Conference, 2011
NPR (noise power ratio) and EVM (error vector magnitude) measurements are used to characterize linear or nonlinear distortions and degradations in digital modulators, microwave or RF amplifiers and transmission links.
J. Sombrin
semanticscholar   +1 more source

Performance enhancement of a WCDMA/HSDPA+ receiver via minimizing error vector magnitude

2013 IEEE International Test Conference (ITC), 2013
SNR enhancement of a 6-band WCDMA/ HSDPA+ directconversion transceiver supporting 21 Mbps High Speed Downlink Packet Access Evolved (HSDPA+) in a single CMOS die is evaluated in this paper. The paper mainly focuses on enhancing SNR performance of a WCDMA/HSDPA+ receiver by minimizing the error vector magnitude (EVM) with the digital compensations of ...
Wei Gao, Chris Liu
openaire   +1 more source

Spectrum monitoring in cognitive radio networks using error vector magnitude.

2018
The proliferation of new operators, innovative services and wireless technologies has caused radio spectrum resources to become scarce. This scarcity has led to the concept of cognitive radio (CR) communication. Spectrum sensing is a critical component of CR networks for spectrum utilization.
openaire   +2 more sources

On the model for error vector magnitude

Wireless Personal Communications, 2007
Saralees Nadarajah, Samuel Kotz
openaire   +1 more source

Semi-analytical computation of error vector magnitude for UMTS SAW filters

2002 IEEE Ultrasonics Symposium, 2002. Proceedings., 2003
Error Vector Magnitude (EVM) is a key parameter for the design of digitally modulated communication systems. In the case of SAW filters, it is a measure for the caused inter-symbol- or inter- chip, interference. It can be mainly attributed to linear distortion. This paper will present a semi-analytical method for computing EVM.
openaire   +1 more source

A measurement-based error-vector-magnitude model to assess non linearity at the system level

Intelligent Memory Systems, 2017
Y. Rolain, M. Zyari, E. Van Nechel, G. Vandersteen   +3 more
semanticscholar   +1 more source

Error Vector Magnitude Analysis of Uplink Multiuser OFDMA and SC-FDMA Systems in the Presence of Nonlinear Distortion

IEEE Communications Letters, 2017
Kun Wu, Guangliang Ren, Qiwei Wang
semanticscholar   +1 more source

Error vector magnitude optimization in phase-stabilized transmission system for vector signals without precoding

2023 Asia Communications and Photonics Conference/2023 International Photonics and Optoelectronics Meetings (ACP/POEM), 2023
Tao Wang, Cheng Gu, Shangyuan Li, Jinyang Liu, Zhengyang Xie, Xin Zhao, Zheng Zheng   +6 more
openaire   +1 more source

Millimeter-wave frequency FDTD simulation for error vector magnitude of modulated signals

International Conference on Advances in Cybersecurity, 2018
Joseph E. Diener, J. Quimby, K. Remley, A. Elsherbeni   +3 more
semanticscholar   +1 more source