Forced Sequence Sequential Decoding: A concatenated coding system with iterated sequential inner decoding

Ole Riis Jensen, Erik Paaske

Research output: Contribution to journalJournal articleResearchpeer-review

284 Downloads (Pure)


We describe a new concatenated decoding scheme based on iterations between an inner sequentially decoded convolutional code of rate R=1/4 and memory M=23, and block interleaved outer Reed-Solomon (RS) codes with nonuniform profile. With this scheme decoding with good performance is possible as low as Eb/N0=0.6 dB, which is about 1.25 dB below the signal-to-noise ratio (SNR) that marks the cutoff rate for the full system. Accounting for about 0.45 dB due to the outer codes, sequential decoding takes place at about 1.7 dB below the SNR cutoff rate for the convolutional code. This is possible since the iteration process provides the sequential decoders with side information that allows a smaller average load and minimizes the probability of computational overflow. Analytical results for the probability that the first RS word is decoded after C computations are presented. These results are supported by simulation results that are also extended to other parameters
Original languageEnglish
JournalI E E E Transactions on Communications
Issue number10
Pages (from-to)1280-1291
Publication statusPublished - 1998

Bibliographical note

Copyright: 1998 IEEE. Personal use of this material is permitted. However, permission to reprint/republish this material for advertising or promotional purposes or for creating new collective works for resale or redistribution to servers or lists, or to reuse any copyrighted component of this work in other works must be obtained from the IEEE


Dive into the research topics of 'Forced Sequence Sequential Decoding: A concatenated coding system with iterated sequential inner decoding'. Together they form a unique fingerprint.

Cite this