Title :
Equalization for unbalanced QPSK and for staggered QPSK
Author :
Craig, By John W
Author_Institution :
Interstate Electron. Corp., Anaheim, CA, USA
fDate :
29 Nov-2 Dec 1993
Abstract :
Linear transversal filter equalization for an unbalanced QPSK signal is studied, and optimum tap gains (which minimize MSE) for the two required equalizers are found as solutions to a new set of equations. The equalizers are chosen to have a fractional tap spacing of one half. Numerical results are presented for a channel that produces I-to-Q and Q-to-I interference
Keywords :
equalisers; filtering and prediction theory; phase shift keying; signal processing; I-to-Q interference; MSE; Q-to-I interference; fractional tap spacing; linear transversal filter equalization; optimum tap gains; staggered QPSK; unbalanced QPSK; Additive noise; Collision mitigation; Decision feedback equalizers; Distortion; Equations; Intersymbol interference; Mean square error methods; Quadrature amplitude modulation; Quadrature phase shift keying; Transversal filters;
Conference_Titel :
Global Telecommunications Conference, 1993, including a Communications Theory Mini-Conference. Technical Program Conference Record, IEEE in Houston. GLOBECOM '93., IEEE
Conference_Location :
Houston, TX
Print_ISBN :
0-7803-0917-0
DOI :
10.1109/GLOCOM.1993.318437
