Utilize este identificador para referenciar este registo: http://hdl.handle.net/10773/12544
Título: IB-DFE SIC based Receiver Structure for IA-Precoded MC-CDMA Systems
Autor: João, Alicia
Silva, Adão
Dinis, Rui
Assunção, José
Gameiro, Atílio
Palavras-chave: Interference alignment
Interference channels
Iterative block equalization
MC-CDMA systems
Data: Set-2014
Editora: EURASIP
Resumo: Interference alignment (IA) is a promising technique that allows high capacity gains in interfering channels. On the other hand, iterative frequency-domain detection receivers based on the IB-DFE concept (Iterative Block Decision Feedback Equalization) can efficiently exploit the inherent space-frequency diversity of the MIMO MC-CDMA systems. In this paper we design a joint iterative IA precoding at the transmitter with IB-DFE successive interference cancellation (SIC) based receiver structure for MC-CDMA systems. The receiver is designed in two steps: first a linear filter is used to mitigate the inter-user aligned interference, and then an iterative frequency-domain receiver is designed to efficiently separate the spatial streams in the presence of residual inter-user aligned interference at the output of the filter. Our scheme achieves the maximum degrees of freedom provided by the IA precoding, while allowing an almost optimum space-diversity gain, with performance close to the matched filter bound (MFB).
Peer review: yes
URI: http://hdl.handle.net/10773/12544
Versão do Editor: http://www.eusipco2014.org/
Aparece nas coleções: DETI - Comunicações

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