GFDM as a framework for FBMC-OQAM: iterative detection and performance evaluation

• Ano de defesa: 2018
• Autor(a) principal: Almeida , Ivo BizonFranco
• Orientador(a): Mendes, Luciano Leonel , Aquino, Guilherme Pedro
• Banca de defesa: Mendes, Luciano Leonel , Lopes, Estevan Marcelo , Fraidenraich, Gustavo , Brito, Jos? Marcos C?mara
• Tipo de documento: Dissertação
• Tipo de acesso: Acesso aberto
• Idioma: por
• Instituição de defesa: Instituto Nacional de Telecomunica??es
• Programa de Pós-Graduação: Mestrado em Engenharia de Telecomunica??es
• Departamento: Instituto Nacional de Telecomunica??es
• País: Brasil
• Palavras-chave em Português: Formas de onda n?o ortogonais; Modula??o multiportadora; Algoritmos de passagem de mensagens; Comunica??es sem fio
• Palavras-chave em Inglês: Non-orthogonal waveforms; Multicarrier modulation; Message passing algorithms; Wireless communications
• Área do conhecimento CNPq: Engenharia - Telecomunica??es
• Link de acesso: http://tede.inatel.br:8080/tede/handle/tede/180

This dissertation firstly presents a background on orthogonal frequency division multiplexing (OFDM), filter bank multicarrier with offset quadrature amplitude modulation (FBMC-OQAM) and generalized frequency division multiplexing (GFDM). Secondly, it exploits the flexibility of GFDM for generating a waveform that achieves the same performance as FBMC-OQAM, named Linear GFDM. Hence, enlarging the set of waveforms that can be derived from GFDM. Finally, based on the application of the sum-product algorithm (SPA) over factor graphs, the graphical representation of Linear GFDM followed by an iterative receiver algorithm, which does not require channel equalization nor noise variance as input information, are presented. Bit error ratio (BER), power spectral density (PSD) and peak-to-average ratio (PAPR) numerical estimation considering different channel models are used for validating the performance of Linear GFDM as well as the SPA-based detection algorithm.