Trading system performance for energy use in a VLSI implementation of an adaptive equalizer

Author

Abbasi, Naeem A. ; Zukowski, Charles A.

Author_Institution

Columbia Univ., New York, NY, USA

Volume

2

fYear

2000

fDate

2000

Firstpage

544

Abstract

We simulate a 64Mbps (16Mbaud, 16-PSK) digital communication link operating in a multipath channel. An adaptive equalizer using Least Mean Square algorithm for coefficient update is used to cancel Intersymbol Interference in the receiver. It is shown through computer simulations that system performance can be traded for energy use more intelligently if information about data temporal characteristics is available to the receiver. A simple transversal filter architecture is also presented in which the number of filter taps, and various word sizes can be dynamically adjusted based on temporal characteristics of data

Keywords

VLSI; adaptive equalisers; adaptive filters; digital communication; interference suppression; intersymbol interference; least mean squares methods; multipath channels; phase shift keying; receivers; 64 Mbit/s; PSK; VLSI; adaptive equalizer; coefficient update; computer simulation; data temporal characteristics; digital communication link; energy use; intersymbol interference cancellation; least mean square algorithm; multipath channel; receiver; system performance; transversal filter architecture; Adaptive equalizers; Computational modeling; Digital communication; Interference cancellation; Intersymbol interference; Least mean square algorithms; Multipath channels; System performance; Transversal filters; Very large scale integration;

fLanguage

English

Publisher

ieee

Conference_Titel

Circuits and Systems, 2000. Proceedings of the 43rd IEEE Midwest Symposium on

Conference_Location

Lansing, MI

Print_ISBN

0-7803-6475-9

Type

conf

DOI

10.1109/MWSCAS.2000.952814

Filename

952814