Banca de DEFESA: RODRIGO FONTAN ARRUDA CEDRIM

Uma banca de DEFESA de MESTRADO foi cadastrada pelo programa.
STUDENT : RODRIGO FONTAN ARRUDA CEDRIM
DATE: 26/08/2022
TIME: 14:00
LOCAL: Sessão por videoconferência - Link: meet.google.com/zmp-ubco-rws
TITLE:

NON-ORTHOGONAL WAVEFORMS FOR 6G SYSTEMS USING SOFTWARE DEFINED RADIO.

KEY WORDS:

6G; 5G NR; radio over fiber; GNURadio.

PAGES: 79
BIG AREA: Engenharias
AREA: Engenharia Elétrica
SUMMARY:

This work deals with the evaluation of non-orthogonal waveforms of the type Spectrally Efficient Frequency Division Multiplexing (SEFDM), in which it is possible to increase the spectral efficiency compared to Orthogonal Frequency Division Multiplexing (OFDM) systems by compressing the spacing between subcarriers below the orthogonality limit. The break of the orthogonality causes the appearance of Inter-Carrier Interference (ICI), which becomes more intense as the spectrum compression increases. The performance of SEFDM was compared with OFDM, which is the waveform used in 5G NR, both in simulations and experimentally in the context of Sixth Generation of mobile communications 6G. During the simulations, the systems were analyzed for Bit Error Rate (BER) with and without the application of error correcting codes of the type Low Density Parity Check (LDPC), for spectral efficiency and Peak-to-Average power Ratio (PAPR). The experiments were carried out considering two scenarios in the context of 5G and beyond, namely the wireless channel and Radio Over Fiber RoF. The transmitters and receivers were implemented in GNURadio, an open-source platform to work with Software Defined Radios SDR and through it was possible to carry out the transmissions and receive the signals.

BANKING MEMBERS:
Externo ao Programa - 1919027 - DANIEL CARVALHO DA CUNHA
Presidente - 2226204 - JOAQUIM FERREIRA MARTINS FILHO
Externo ao Programa - 1168575 - JOSE SAMPAIO DE LEMOS NETO
Externo ao Programa - 2158364 - LEONARDO DIDIER COELHO