Analytical estimation of transition activity for DSP architectures

Sumant Ramprasad, Naresh R Shanbhag, Ibrahim N. Hajj

Research output: Contribution to journalConference articlepeer-review


We present an analytical method to estimate the average number of transitions, T, for a given DSP architecture. First, an exact relation between the transition activity, probability, and autocorrelation for a 1-bit signal is derived. Next, we estimate word-level signal transition activity using word-level signal statistics, the signal generation model, and the signal encoding. Input signal statistics are propagated through the DSP operators in a system and then employed to estimate T. Simulations with filters result in errors in T between 1% and 12%. Also, the transpose form is shown to have fewer signal transitions than the direct form for the same input.

Original languageEnglish (US)
Pages (from-to)1512-1515
Number of pages4
JournalProceedings - IEEE International Symposium on Circuits and Systems
StatePublished - 1997
EventProceedings of the 1997 IEEE International Symposium on Circuits and Systems, ISCAS'97. Part 4 (of 4) - Hong Kong, Hong Kong
Duration: Jun 9 1997Jun 12 1997

ASJC Scopus subject areas

  • Electrical and Electronic Engineering


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