Decoding under Integer Metrics Constraints

Jack Salz, Jack Salz, Ephraim Zehavi

Research output: Contribution to journalArticlepeer-review

14 Scopus citations


We investigate the problem of decoding digital data when soft decisions are constrained to take on values from a finite set. We propose a physically reasonable objective function for selecting the desired assignment of metrics to the received analog signals. We develop a search algorithm for designing a table-look-up that is used by the decoder to select the appropriate intermediate metrics and show that an optimum solution exists. We provide a number of illuminating examples to elucidate our ideas and work out in detail some practical cases.

Original languageEnglish
Pages (from-to)307-317
Number of pages11
JournalIEEE Transactions on Communications
Issue number234
StatePublished - 1995
Externally publishedYes


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