Paper Info
Title
Iterative Blind OFDM Parameter Estimation and Synchronization for Cognitive Radio Systems.
Abstract
An iterative design method for Orthogonal Frequency Division Multiplexing (OFDM) system parameter estimation and synchronization under a blind scenario for cognitive radio systems is proposed in this paper. A novel envelope spectrum-based arbitrary oversampling ratio estimator is presented first, based on which the algorithms are then developed to provide the identification of other OFDM parameters (number of subcarriers, cyclic prefix (CP) length). Carrier frequency offset (CFO) and timing offset are estimated for the purpose of synchronization with the help of the identified parameters. An iterative scheme is employed to increase the estimation accuracy. To validate the proposed design, the performance is evaluated under an experimental propagation environment and the results show that the proposed design is capable of adapting blind parameter estimation and synchronization for cognitive radio with improved performances.
Year
DOI
Venue
2012
10.1109/VETECS.2012.6240069
VTC Spring
Keywords
Field
DocType
OFDM modulation,blind source separation,cognitive radio,iterative methods,parameter estimation,signal sampling,synchronisation,carrier frequency offset,cognitive radio systems,cyclic prefix,envelope spectrum based arbitrary oversampling ratio estimator,estimation accuracy,iterative blind OFDM parameter estimation,timing offset
Synchronization,Cyclic prefix,Iterative method,Computer science,Carrier frequency offset,Electronic engineering,Iterative design,Blind signal separation,Orthogonal frequency-division multiplexing,Cognitive radio
Conference
ISSN
Citations 
PageRank 
2577-2465
2
0.36
References 
Authors
5
3
Name
Order
Citations
PageRank
Gejie Liu192.60
Xianbin Wang22365223.86
Jean-Yves Chouinard319826.37