EXIT functions for randomly punctured systematic codes
2007 (English)In: 2007 IEEE INFORMATION THEORY WORKSHOP, NEW YORK: IEEE , 2007, 24-29 p.Conference paper (Refereed)
In this paper, the extrinsic information transfer (EXIT) functions of randomly punctured systematic codes (RP-SCs) are analyzed. We consider the systematic encoder to consist of a non-systematic code (NC) and a parallel path for the systematic bits; puncturing of the systematic and the parity bits is then carried out separately. We show that the decoding model for measuring the EXIT characteristics of a RP-SC can be transformed into a decoding model of the underlying NC. For the special case where the a priori/communication channels are modeled by binary erasure channels, it becomes obvious that the EXIT functions of any RP-SC can be analytically derived from the EXIT functions of the underlying NC. This theoretical result is verified by a comparison to simulated EXIT functions.
Place, publisher, year, edition, pages
NEW YORK: IEEE , 2007. 24-29 p.
IdentifiersURN: urn:nbn:se:kth:diva-28979DOI: 10.1109/ITW.2007.4313044ISI: 000253441300005ScopusID: 2-s2.0-46749117261OAI: oai:DiVA.org:kth-28979DiVA: diva2:396550
IEEE Information Theory Workshop, Tahoe City, CA, SEP 02-06, 2007
QC 201102102011-02-102011-01-252016-05-12Bibliographically approved