Please use this identifier to cite or link to this item: http://hdl.handle.net/10773/12537
Title: Performance evaluation of IB-DFE-based strategies for SC-FDMA systems
Author: Silva, Adão
Assunção, José
Dinis, Rui
Gameiro, Atílio
Keywords: SC-FDMA
IB-DFE
Multi-user separation
PIC
SIC
Cellular systems
Issue Date: 1-Dec-2013
Publisher: SpringerOpen
Abstract: The aim of this paper is to propose and evaluate multi-user iterative block decision feedback equalization (IB-DFE) schemes for the uplink of single-carrier frequency-division multiple access (SC-FDMA)-based systems. It is assumed that a set of single antenna users share the same physical channel to transmit its own information to the base station, which is equipped with an antenna array. Two space-frequency multi-user IB-DFE-based processing are considered: iterative successive interference cancellation and parallel interference cancellation. In the first approach, the equalizer vectors are computed by minimizing the mean square error (MSE) of each individual user, at each subcarrier. In the second one, the equalizer matrices are obtained by minimizing the overall MSE of all users at each subcarrier. For both cases, we propose a simple yet accurate analytical approach for obtaining the performance of the discussed receivers. The proposed schemes allow an efficient user separation, with a performance close to the one given by the matched filter bound for severely time-dispersive channels, with only a few iterations.
Peer review: yes
URI: http://hdl.handle.net/10773/12537
DOI: 10.1186/1687-1499-2013-292
ISSN: 1687-1499
Appears in Collections:DETI - Artigos

Files in This Item:
File Description SizeFormat 
1687-1499-2013-292.pdf623.91 kBAdobe PDFView/Open


FacebookTwitterLinkedIn
Formato BibTex MendeleyEndnote Degois 

Items in DSpace are protected by copyright, with all rights reserved, unless otherwise indicated.