Title :
Closed-form equalization
Author :
Grellier, Olivier ; Comon, Pierre
Author_Institution :
Algorithmes/Euclide, Sophia Antipolis, France
Abstract :
Many blind or semi-blind equalizers are implemented with the help of iterative algorithms, and therefore may require long convergence times or suffer from local minima. Closed-form block blind equalizers are attractive, even if they are suboptimal, since they can serve to initialize them. But they can perform better in time-varying contexts, that is on very short data blocks. The authors focused mainly on PSK modulations, including MSK and QPSK. The proposed algorithms are based on known instantaneous properties of such modulations
Keywords :
blind equalisers; minimum shift keying; phase shift keying; quadrature phase shift keying; telecommunication channels; MSK; PSK; QPSK; blind equalizers; channel equalization; closed-form block blind equalizers; closed-form equalization; instantaneous properties; iterative algorithms; semi-blind equalizers; Blind equalizers; Communication channels; Context; Finite impulse response filter; Iterative algorithms; Phase shift keying; Quadrature phase shift keying; Recursive estimation; Sampling methods; Source separation;
Conference_Titel :
Signal Processing Advances in Wireless Communications, 1999. SPAWC '99. 1999 2nd IEEE Workshop on
Conference_Location :
Annapolis, MD
Print_ISBN :
0-7803-5599-7
DOI :
10.1109/SPAWC.1999.783058
