Repositorio de producción científica de la Universidad de Sevilla

Design of an efficient CORDIC-based architecture for synchronization in OFDM

 

Advanced Search
 
Opened Access Design of an efficient CORDIC-based architecture for synchronization in OFDM
Cites

Show item statistics
Icon
Export to
Author: Granado Romero, Joaquín
Torralba Silgado, Antonio Jesús
Chávez Orzaez, Jorge Jesús
Baena-Lecuyer, Vicente
Department: Universidad de Sevilla. Departamento de Ingeniería Electrónica
Date: 2006-08
Published in: IEEE Transactions on Consumer Electronics, 52 (3), 774-782.
Document type: Article
Abstract: This paper presents a new architecture to estimate the time and frequency offsets required to synchronize packed-based orthogonal frequency division multiplexing (OFDM) modulation receivers. The proposed estimators, which operate in the frequency-domain, use CORDIC (coordinate rotation digital computer) processors to achieve an efficient hardware implementation which is simpler than other computational intensive estimators based on processing in the time-domain. The hardware saving is twofold: the proposed implementation does not require complex cells such as multipliers or dividers; and some cells already existing in OFDM receivers for pay-load demodulation are reused during the synchronization phase. In addition, this paper also shows how to optimize the CORDIC cells, in terms of number of iterations, to provide a given signal-to-noise ratio (SNR) due to approximation error, and proposes an error propagation model for the proposed synchronization architecture.
Cite: Granado Romero, J., Torralba Silgado, A.J., Chávez Orzaez, J.J. y Baena-Lecuyer, V. (2006). Design of an efficient CORDIC-based architecture for synchronization in OFDM. IEEE Transactions on Consumer Electronics, 52 (3), 774-782.
Size: 449.8Kb
Format: PDF

URI: https://hdl.handle.net/11441/77763

DOI: 10.1109/TCE.2006.1706469

See editor´s version

This work is under a Creative Commons License: 

This item appears in the following Collection(s)