Title :
Convergence analysis of Lk-norm echo cancellers for PSKL and QAM data transmission
Author :
Lorenzo-Speranzini, Francisco ; Páez-Borrallo, José M.
Author_Institution :
ETSI TElecommun., Madrid, Spain
Abstract :
The authors present a generalization of the Lk-norm echo cancellers of PSKL (L denotes number of phases) and 16-level QAM (quadrature amplitude modulation) data transmission. They describe the theoretical analysis of a stochastic gradient type algorithm based on the minimization of high order norms of the absolute residual error in the context of PSKL and 16-level QAM data transmission. A method for the choice of the right adaptation step, to guarantee convergence, according to a desired final error variance is established. Finally, the coherence of the analysis is shown with some computer simulation results
Keywords :
amplitude modulation; convergence; data communication systems; echo suppression; phase shift keying; 16-level QAM data transmission; Lk-norm echo cancellers; PSK data transmission; absolute residual error; phase shift keying; quadrature amplitude modulation; stochastic gradient type algorithm; Algorithm design and analysis; Computer errors; Computer simulation; Convergence; Data communication; Echo cancellers; Minimization methods; Phase shift keying; Quadrature amplitude modulation; Stochastic processes;
Conference_Titel :
Acoustics, Speech, and Signal Processing, 1991. ICASSP-91., 1991 International Conference on
Conference_Location :
Toronto, Ont.
Print_ISBN :
0-7803-0003-3
DOI :
10.1109/ICASSP.1991.150537
