Impulse Noise Suppression in Blind Channel Equalization

نویسنده

  • Tetsuya Shimamura
چکیده

In this paper, robust blind channel equalization is addressed in which the combination of order statistics (OS) and thresholding techniques to suppress impulse noise is considered. We implement nonlinear adaptation with the OS operation based on the Sato error criterion. The threshold is calculated using the variance of the input signal. Computer simulations demonstrate that a significant improvement in both the bit error rate and mean square error is achieved for a communication channel model with a mixture of additive white Gaussian noise and impulse noise. Key–Words: Blind channel equalization, impulse noise, order statistics, threshold

برای دانلود متن کامل این مقاله و بیش از 32 میلیون مقاله دیگر ابتدا ثبت نام کنید

ثبت نام

اگر عضو سایت هستید لطفا وارد حساب کاربری خود شوید

منابع مشابه

Blind Channel Equalization in Impulse Noise

This paper presents a robust blind channel equalization technique in impulse noise environments. To suppress impulse noise effectively, the combination of order statistics (OS) and adaptive thresholding is considered. We implement nonlinear adaptation with the OS operation based on the Sato error criterion. The adaptive threshold is calculated using the variance of the input signal. Computer si...

متن کامل

Exploiting independence for co-channel interference cancellation and symbol detection in multiuser digital communications

In the blind equalization of multi-input multi-output (MIMO) finite impulse response communication channels, co-channel interference (CCI) is typically cancelled by exploiting the properties of digital modulations, such as their finite alphabet (FA). This contribution takes advantage of the mutual independence of the users’ signals through the application of independent component analysis (ICA)...

متن کامل

Redundant Filterbank Precoders and Equalizers Part II: Blind Channel Estimation, Synchronization, and Direct Equalization

Transmitter redundancy introduced using finite impulse response (FIR) filterbank precoders offers a unifying framework for singleand multiuser transmissions. With minimal rate reduction, FIR filterbank transmitters with trailing zeros allow for perfect (in the absence of noise) equalization of FIR channels with FIR zero-forcing equalizer filterbanks, irrespective of the input color and the chan...

متن کامل

Redundant filterbank precoders and equalizers. II. Blind channel estimation, synchronization, and direct equalization

Transmitter redundancy introduced using finite impulse response (FIR) filterbank precoders offers a unifying framework for singleand multiuser transmissions. With minimal rate reduction, FIR filterbank transmitters with trailing zeros allow for perfect (in the absence of noise) equalization of FIR channels with FIR zero-forcing equalizer filterbanks, irrespective of the input color and the chan...

متن کامل

Robust Blind Equalization Algorithms Based on the Constrained Maximization of a Fourth-Order Cumulant Function

The present letter deals with the blind equalization problem of a single-input single-output infinite impulse response (SISO-IIR) channel with additive Gaussian noise. To solve the problem, we propose a new criterion for maximizing constrainedly a fourth-order cumulant. The algorithms derived from the criterion have such a novel property that even if Gaussian noise is added to the output of the...

متن کامل

ذخیره در منابع من


  با ذخیره ی این منبع در منابع من، دسترسی به آن را برای استفاده های بعدی آسان تر کنید

برای دانلود متن کامل این مقاله و بیش از 32 میلیون مقاله دیگر ابتدا ثبت نام کنید

ثبت نام

اگر عضو سایت هستید لطفا وارد حساب کاربری خود شوید

عنوان ژورنال:

دوره   شماره 

صفحات  -

تاریخ انتشار 2011