Title :
Blind phase recovery in QAM communication systems using higher order statistics
Author :
Chen, Ling ; Kusaka, Hiroji ; Kominami, Masanobu
Author_Institution :
Dept. of Electr. & Electron. Syst., Osaka Prefecture Univ., Japan
fDate :
5/1/1996 12:00:00 AM
Abstract :
We present a method for phase recovery in QAM communication systems based on higher order statistics. Under the assumption that the QAM signals have independent, identically distributed (i.i.d.) in-phase and quadrature components, we derive the relation between the phase error and the fourth-order cumulant of the output. Numerical performance of the approach is demonstrated by computer simulation.
Keywords :
digital communication; error analysis; higher order statistics; phase estimation; quadrature amplitude modulation; synchronisation; QAM communication systems; blind phase recovery; fourth-order cumulant; higher order statistics; iid components; in-phase component; independent identically distributed components; numerical performance; phase error; quadrature components; Baseband; Blind equalizers; Computer errors; Digital communication; Gaussian noise; Higher order statistics; Intersymbol interference; Phase estimation; Quadrature amplitude modulation; Senior members;
Journal_Title :
Signal Processing Letters, IEEE
