Title :
Design and characterisation of partial response decision feedback equaliser
Author :
Seah, P.H. ; Gurcan, M.K.
Author_Institution :
Dept. of Electr. & Electron. Eng., Imperial Coll. of Sci., Technol. & Med., London, UK
Abstract :
The partial response decision feedback equaliser (DFE) solution is derived by applying Wiener filter theory and the principle of orthogonality to obtain novel expressions for the optimum filter tap weights and the minimum mean square error (MSE). The effective filter lengths for the DFE are determined. The theoretical derivations are verified by simulations. The characteristics of optimum MSE behaviour under varying DFE parameters (channel filter, modulation filter, FFF length, detection delay, FBF length and channel noise) for different modulation signals are studied using simulations and some guidelines for effective DFE design are proposed
Keywords :
Wiener filters; decision feedback equalisers; filtering theory; land mobile radio; least mean squares methods; FBF length; FFF length; Wiener filter theory; channel filter; channel noise; characterisation; design; detection delay; effective filter lengths; minimum mean square error; mobile radio; modulation filter; modulation signals; optimum filter tap weights; orthogonality principle; partial response decision feedback equaliser; simulations; Decision feedback equalizers; Filtering; Land mobile radio equipment; Least mean square methods; Wiener filtering;
Conference_Titel :
Global Telecommunications Conference, 1995. Conference record. Communication Theory Mini-Conference, GLOBECOM '95., IEEE
Print_ISBN :
0-7803-2509-5
DOI :
10.1109/CTMC.1995.502952
