Analysis of the effects of time delay spread on TCM performance

Pingyi Fan, Khaled Letaief, Ross D. Murch

Research output: Contribution to journalArticle

7 Citations (Scopus)


In this paper, we investigate the effect of time delay spread on trellis coded modulation (TCM) in a wireless radio environment where equalization is not employed to mitigate the effects of frequency selective fading when the time delay spread is small. Using a random variable decomposition technique and a Gaussian approximation of the intersymbol interference terms, we obtain explicit bounds for the pairwise error probability of TCM over multipath Rayleigh fading channels characterized by various power delay profiles. A method to calculate an upper bound of the bit error rate (BER) based on Jamali and LeNgoc bound is also presented. These bounds are used to evaluate TCM performance as well as investigate the delay spread tolerance limit of TCM, including I-Q TCM, over frequency selective fading channels.

Original languageEnglish
Pages (from-to)1212-1223
Number of pages12
JournalIEEE Journal on Selected Areas in Communications
Issue number7
Publication statusPublished - Jul 1999
Externally publishedYes


ASJC Scopus subject areas

  • Computer Networks and Communications
  • Electrical and Electronic Engineering

Cite this