Improved Time-domain Equalizer Initialization Algorithm for Adsl Modems

نویسندگان

  • K. S. Yap
  • J. V. McCanny
چکیده

In this paper, we propose an improved adaptive initialization algorithm for the time domain equalizer in an FDM-based Asymmetric Digital Subscriber Line (ADSL). Using our developed approach, higher convergence rate than that of the commonly used Least-Mean Square algorithm is obtained, whilst attaining bit rates close to the optimum Maximum Shortening SNR and the upper bound Match Filter Bound (MFB). Furthermore, our proposed method outperforms the Minimum MeanSquared Error design for a range of TEQ filter lengths. The improved performance outweighs the small increase in computational complexity.

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

Improved initialization for time domain equalization in ADSL

An improved optimization algorithm for the time domain equalizer (TEQ) is developed for discrete multitone (DMT) based asymmetric digital subscriber line (ADSL). In contrast with existing algorithms, our algorithm explicitly disregards the unused tones in the cost function as well as in the non-triviality constraint. Simulation results are presented for the upstream channel. It is shown that th...

متن کامل

Improved Time Domain Equalization for Adsl 1 Improved Time Domain Equalization for Adsl

| An improved optimization algorithm for the time domain equalizer (TEQ) is developed in case of Frequency Division Multiplexing-based Asymmetric Digital Subscriber Line (FDM-ADSL). In contrast with existing algorithms, our algorithm explicitly disregards the unused tones in the optimization function as well as in the non-triviality constraint. Some simulation results are presented for the upst...

متن کامل

A New Approach of Digital Subscriber Line2 Initialization Process

In this paper, a design for Asymmetric Digital Subscriber Line (ADSL)/Asymmetric Digital Subscriber Line2 (ADSL2) Initialization Process is presented which can be applied to different telephone network. Such a proposal can face the different types of noise over DSL channels, the most important types are Background and Crosstalk noises and Inter symbol interference (ISI) which is eliminated by u...

متن کامل

Performance Comparison of Time-Domain Equalization (TEQ) Techniques in a Discrete Wavelet Multitone (DWMT) System for Asymmetric Digital Subscriber Line (ADSL)

A Discrete Wavelet Multitone (DWMT) transceiver is proposed for the Asymmetrical Digital Subscriber Line (ADSL) channel, which promises greater subchannel spectral containment, as compared to the Fourier transform based conventional Discrete Multitone (DMT) system. Wavelet packet transform applied in DWMT system is robust against narrowband interference and impulse noise. It is also spectrally ...

متن کامل

Improved time domainequalization for

| An improved optimization algorithm for the time domain equalizer (TEQ) is developed in case of Frequency Division Multiplexing-based Asymmetric Digital Subscriber Line (FDM-ADSL). In contrast with existing algorithms, our algorithm explicitly disregards the unused tones in the optimization function as well as in the non-triviality constraint. Some simulation results are presented for the upst...

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 2001