izvorni znanstveni rad
The third order intermodulation products in OFDM systems caused by nonlinear analog circuits are presented. These impairments result in inter-bin interference (IBI) which causes errors in the constellation diagram of each subcarrier. Changes in amplitude and phase of the subcarriers by IBI combined with communication system noise can cause increased bit error rate (BER) in the demodulation process of some modulation types, particular for higher order types where one symbol consist of more bits. Because the Fourier Transform is a fundamental operation in processing subcarriers in OFDM systems we have analyzed the inter-bin interference by means of FFT, IFFT and some statistical methods to clarify the statistical behavior of the errors. We have try to fit the statistics of the amplitude and phase errors of each subcarrier with a known probability density function and investigated the influence of peak-to-average ratio (PAR) on IBI
modulation, mobile networks, transmission quality, signal processing
Razvojem virtualizacijskih tehnologija raste kompleksnost IT sustava, dok korisnici istovremeno zahtijevaju brži pristup resursima, napredne integracije i jednostavnost korištenja. Jedno od ključnih rješenja za ove izazove primjena je…
Ovaj rad istražuje i uspoređuje mogućnosti prosljeđivanja grafičkih kartica na Hyper-V i KVM hipervizorima prema virtualnim strojevima, detaljno opisujući metode, postupke i razlike u arhitekturi koje utječu na…
The ever-growing usage and adaptation of HTTP/3 in web traffic leverages Quick UDP Internet Connections (QUIC) as a transport protocol. QUIC is widely recognized for reduced latency, enhanced…
