Please use this identifier to cite or link to this item: http://hdl.handle.net/11144/784
Title: MIMO SC-FDE Transmission Techniques with Channel Estimation and High-Order Modulations
Authors: Silva, João Carlos
Dinis, Rui
Souto, Nuno
Silva, Mário Marques da
Issue Date: Mar-2013
Abstract: OFDM schemes have important limitations such as the high envelope fluctuations of the transmitted signals and its sensibility to carrier frequency errors. When these limitations bear critical we should consider SCFDE schemes (Single-Carrier Frequency Domain Equalization), which allow much higher power efficiency due to the lower envelope fluctuations. This can be further improved if the conventional linear FDE is replaced by an iterative FDE such as an IB-DFE (Iterative Block Decision Feedback Equalizer). In order to obtain good performance results, accurate channel estimates must be available at the receiver, especially if MIMO (Multiple Input, Multiple Output) and high-order modulations are to be used. For this purpose, pilot symbols and/or training sequences are usually multiplexed with data symbols, which lead to spectral degradation. As an alternative, we can use implicit pilots. In this paper we consider SC-IB-FDE systems in MIMO 2x2 broadband with high order modulations and channel estimation.
Peer reviewed: no
URI: http://hdl.handle.net/11144/784
Appears in Collections:BUAL - Comunicações em conferências
DCT- Comunicações em conferências

Files in This Item:
File Description SizeFormat 
MIMO.pdf389.45 kBAdobe PDFView/Open


FacebookTwitterDeliciousLinkedInDiggGoogle BookmarksMySpace
Formato BibTex MendeleyEndnote Currículo DeGóis 

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