On multilevel trellis MPSK codes

Jiantian Wu, Daniel J. Costello, Lance C. Perez

Research output: Chapter in Book/Report/Conference proceedingConference contribution

1 Scopus citations


The performance of multilevel trellis codes (MLTCs) using MPSK signalling with multistage decoding (MSD) is studied. It is shown that 8PSK codes can only achieve a real coding gain of 4dB over uncoded QPSK at a bit error rate (BER) of 10-5. However, multistage decoding has a significant complexity advantage compared to Viterbi decoding which is used with one level trellis coded modulation (TCM). It is shown that some 8PSK MLTCs with high spectral efficiency (about 2.5 bits/symbol) and moderate coding gain have a performance versus complexity advantage over one level TCM even at a BER of 10-5. Computer simulations support this result. Simulation is also used to study the performance loss due to the suboptimal nature of MSD. Concatenated multilevel codes are designed by using concatenated codes at one or more levels of the MLTC.

Original languageEnglish (US)
Title of host publicationProceedings - 1991 IEEE International Symposium on Information Theory, ISIT 1991
PublisherInstitute of Electrical and Electronics Engineers Inc.
Number of pages1
ISBN (Electronic)0780300564
StatePublished - 1991
Externally publishedYes
Event1991 IEEE International Symposium on Information Theory, ISIT 1991 - Budapest, Hungary
Duration: Jun 24 1991Jun 28 1991

Publication series

NameIEEE International Symposium on Information Theory - Proceedings
ISSN (Print)2157-8095


Conference1991 IEEE International Symposium on Information Theory, ISIT 1991

ASJC Scopus subject areas

  • Theoretical Computer Science
  • Information Systems
  • Modeling and Simulation
  • Applied Mathematics


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