Title :
Wavelet based adaptive equalization algorithm
Author :
Liu, Feng ; Cheng, Jun ; Xu, Jinbiao ; Wang, Xinmei
Author_Institution :
Xidian Univ., Xi´´an, China
Abstract :
Two equalizer structures based on orthogonal wavelet bases are proposed, named the wavelet based linear equalizer (WBLE) and wavelet based decision feedback equalizer (WBDFE). The equalizer is represented by a set of orthogonal wavelets and the corresponding coefficients. The paper also gives the adaptation algorithm. Simulation results show that the WBLE and WBDFE converge faster than the conventional LMS based linear equalizer and decision feedback equalizer, while the increase in the computational complexity is very low
Keywords :
adaptive equalisers; computational complexity; convergence of numerical methods; decision feedback equalisers; interference suppression; intersymbol interference; wavelet transforms; LMS based linear equalizer; adaptation algorithm; computational complexity; convergence; decision feedback equalizer; interference suppression; intersymbol interference; orthogonal wavelet bases; simulation results; wavelet based adaptive equalization algorithm; wavelet based decision feedback equalizer; wavelet based linear equalizer; wavelet coefficients; Adaptive equalizers; Computational complexity; Computational modeling; Convergence; Convolution; Decision feedback equalizers; Digital communication; Inference algorithms; Least squares approximation; Time frequency analysis;
Conference_Titel :
Global Telecommunications Conference, 1997. GLOBECOM '97., IEEE
Conference_Location :
Phoenix, AZ
Print_ISBN :
0-7803-4198-8
DOI :
10.1109/GLOCOM.1997.644331
