Please use this identifier to cite or link to this item:
http://hdl.handle.net/10773/12544
Title: | IB-DFE SIC based Receiver Structure for IA-Precoded MC-CDMA Systems |
Author: | João, Alicia Silva, Adão Dinis, Rui Assunção, José Gameiro, Atílio |
Keywords: | Interference alignment Interference channels Iterative block equalization MC-CDMA systems |
Issue Date: | Sep-2014 |
Publisher: | EURASIP |
Abstract: | 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 |
Publisher Version: | http://www.eusipco2014.org/ |
Appears in Collections: | DETI - Comunicações |
Files in This Item:
File | Description | Size | Format | |
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C3.pdf | 245.68 kB | Adobe PDF |
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