Waveform evaluation for 5G networks
Author
Fuentes Pazos, Pablo
Term
4. term
Education
Publication year
2015
Submitted on
2015-06-03
Abstract
Denne afhandling undersøger og sammenligner kandidater til 5G-bølgeformer med fokus på OFDM, SC-FDM og Zero Tail DFT-s-OFDM. Arbejdet introducerer først kravene til en 5G-bølgeform og beskriver derefter designet af sende- og modtagekæder for hver metode. Implementeringen er udført i LabVIEW og evalueret i simulationsmiljøer med både AWGN og frekvensselektive fadekanaler. Præstationen vurderes gennem bit- og blokfejlrate (BER/BLER), peak-to-average power ratio (PAPR) og spektrale egenskaber. Derudover gennemføres en realtidsvalidering via et hardwarelink baseret på USRP N200, inklusive synkronisering og reduktion af fasefejl. Resultatkapitlerne sammenligner de tre bølgeformer på tværs af modulationsordener (bl.a. 4QAM og 16QAM) og viser både fejlrater, spektrum og tidsformning for zero-tail, men konkrete tal og detaljerede konklusioner fremgår ikke af dette uddrag.
This thesis investigates and compares candidate 5G waveforms, focusing on OFDM, SC-FDM, and Zero Tail DFT-s-OFDM. It first outlines key requirements for a 5G waveform and then details the design of transmitter and receiver chains for each scheme. The implementations are built in LabVIEW and evaluated through simulations over AWGN and frequency-selective fading channels. Performance is assessed using bit and block error rates (BER/BLER), peak-to-average power ratio (PAPR), and spectral characteristics. A real-time validation is also carried out using a USRP N200 hardware link, including synchronization and phase error mitigation. The results chapters compare the three waveforms across modulation orders (including 4QAM and 16QAM) and report error rates, spectra, and zero-tail time shaping, but specific numerical outcomes and detailed conclusions are not included in this excerpt.
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