Title :
Moment-based performance evaluation of digital transmission systems
Author :
Benedetto, S. ; Biglieri, E. ; Luvison, A. ; Zingarelli, V.
Author_Institution :
Dipartimento di Elettronica, Politecnico di Torino, Italy
fDate :
6/1/1992 12:00:00 AM
Abstract :
The average error probability P e in many digital communications systems can be expressed as the statistical expectation of a known function of some random interference variable (or vector) X. The authors present a unified theory to evaluate P e based on moment error bounds or approximations, when the moments of X are available. The theory can also be extended to random variables with inaccurately known moments. The relevant numerical question of accuracy and roundoff errors due to averaging with the aid of high-precision rules is addressed. Examples of application to spread-spectrum multiple-access systems, optical fibre systems and microwave digital radio-relay links are presented to show the applicability of the proposed methods to different environments.<>
Keywords :
digital communication systems; digital radio systems; error statistics; microwave links; multi-access systems; numerical methods; optical links; spread spectrum communication; average error probability; digital communications systems; high-precision rules; microwave digital radio-relay links; moment error bounds; numerical accuracy; optical fibre systems; performance evaluation; random interference variable; roundoff errors; spread-spectrum multiple-access systems; statistical expectation; unified theory;
Journal_Title :
Communications, Speech and Vision, IEE Proceedings I
