Please use this identifier to cite or link to this item:
Title: Estimation of CFO and channels in phase-shift orthogonal pilot-aided OFDM systems with transmitter diversity
Author: Ribeiro, C.
Gameiro, A.
Issue Date: 2009
Publisher: SpingerOpen
Abstract: We present a CFO estimation algorithm and an associated channel estimation method for broadband OFDM systems with transmitter diversity. The CFO estimation algorithm explores the TD structure of the transmitted symbols carrying pilots and data, relying solely on the data component present on the symbols to estimate the CFO, thus avoiding additional overhead like training symbols or null subcarriers. An intermediate output of the CFO algorithm provides an easy-to-get initial CIR estimate that will be improved with the utilization of a TD LMMSE filter. The feasibility of the investigated methods is substantiated by system simulation using indoor and outdoor broadband wireless channel models. Simulation results show that the joint algorithms provide a near optimal system's performance.
Peer review: yes
DOI: 10.1155/2009/436756
ISSN: 1687-1472
Appears in Collections:DETI - Artigos

Files in This Item:
File Description SizeFormat 
CRibeiro_Estimation_CFO.pdf849.08 kBAdobe PDFView/Open

Formato BibTex MendeleyEndnote Degois 

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