Title :
Ultra-fast blind equalization for OFDM: Principle and steps towards implementation
Author :
Vincent Savaux;Malek Naoues;Faouzi Bader;Jacques Palicot
Author_Institution :
SCEE/IETR - CentraleSup?lec, Avenue de la Boulaie, 35 576 Cesson - S?vign? Cedex, Rennes, France
Abstract :
Blind equalization allows the transmitted signals to maximize their spectral efficiency, but it is limited by the convergence time of used algorithms. In this paper, the authors propose a new frequency blind equalization method for orthogonal frequency division multiplexing (OFDM), which drastically reduces the transient state delay of the algorithm´s convergence process. It consists of reusing a proper number of received OFDM symbols that have been stored in a memory. Simulations results reveal that a quasi-instantaneous equalization process can be achieved. In addition, the implementation issues are discussed in this paper.
Keywords :
"Blind equalizers","OFDM","Convergence","Receivers","Delays","Cost function"
Conference_Titel :
Wireless Communication Systems (ISWCS), 2015 International Symposium on
Electronic_ISBN :
2154-0225
DOI :
10.1109/ISWCS.2015.7454419