Analytical derivation of multi-variate bit-level EXIT functions for multilevel codes

Yi Wang*, Alister G. Burr

*Corresponding author for this work

Research output: Contribution to journalArticlepeer-review


In this paper we analytically derive the Multi-variate Bit-Level Extrinsic Information Transfer (MV-BL-EXIT) function for a particular level of multilevel codes. The Binary Symmetric Channel (BSC) and Binary Erasure Channel (BEC) are considered for the derivation. The use of combined information is proposed to simplify the convergence analysis of multilevel codes. Bounds for the MV-BL-EXIT functions are also analyzed.

Original languageEnglish
Article number6400355
Pages (from-to)249-252
Number of pages4
JournalIEEE Communications Letters
Issue number2
Early online date2 Jan 2013
Publication statusPublished - Feb 2013


  • iterative decoding
  • Multilevel codes

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