Accession Number:

ADA505689

Title:

Mitigating Error Propagation Effects in a Decision Feedback Equalizer

Descriptive Note:

Journal article

Corporate Author:

SPACE AND NAVAL WARFARE SYSTEMS CENTER SAN DIEGO CA

Personal Author(s):

• Reuter, Michael
• Allen, Jeffery C.
• Zeidler, James R.
• North, Richard C.

Report Date:

2001-11-01

Pagination or Media Count:

15.0

Abstract:

This paper presents an approximate analysis approach to the computation of probability of error and mean burst error length for a decision feedback equalizer DFE that takes into account feedback of decision errors. The method uses a reduced-state Markov model of the feedback process and is applicable to linear modulation formats. This technique was used to analyze a DFE design that mitigates the effects of feedback error by incorporating a soft decision device into the feedback path and a norm constraint on the feedback filter weights. The DFE design and analysis approach was applied to a dispersive multipath propagation environment.

Descriptors:

• *INTERSYMBOL INTERFERENCE
• *DIGITAL COMMUNICATIONS
• DECISION MAKING
• APPROXIMATION(MATHEMATICS)
• ERROR ANALYSIS
• BURST TRANSMISSION
• FEEDBACK
• MARKOV PROCESSES
• REPRINTS
• PROPAGATION
• MATHEMATICAL ANALYSIS

Subject Categories:

• Radio Communications

Distribution Statement:

APPROVED FOR PUBLIC RELEASE