Viterbi decoder for high-speed ultra-wideband communication systems

Jun Tang, Keshab K Parhi

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

3 Scopus citations

Abstract

The ultra-wideband (UWB) communication systems have attracted both academic research and commercial interests due to their potential high throughput and precise ranging capability. Convoluitonal codes are widely used in different proposals for the high-speed UWB communication systems. In this paper, a novel Viterbi decoder architecture is studied for the multiband orthogonal frequency division multiplexing (MB-OFDM) UWB system [1]. In the Viterbi decoder, sliding block, 2-step lookahead and 2 parallel techniques are combined to achieve the highest desired data rate. For lower data rates, it is possible to disable some parts of the decoder for power saving by proper analysis of the effects of puncturing on word length and trace back length. At the same time, in add-compare-select (ACS) unit, pipelined most-significant bit (MSB) first ACS unit is also utilized to shorten the length of the critical path.

Original languageEnglish (US)
Title of host publication2005 IEEE ICASSP '05 - Proc. - Design and Implementation of Signal Proces.Syst.,Indust. Technol. Track,Machine Learning for Signal Proces. Education, Spec. Sessions
PublisherInstitute of Electrical and Electronics Engineers Inc.
PagesV37-V40
ISBN (Print)0780388747, 9780780388741
DOIs
StatePublished - Jan 1 2005
Event2005 IEEE International Conference on Acoustics, Speech, and Signal Processing, ICASSP '05 - Philadelphia, PA, United States
Duration: Mar 18 2005Mar 23 2005

Publication series

NameICASSP, IEEE International Conference on Acoustics, Speech and Signal Processing - Proceedings
VolumeV
ISSN (Print)1520-6149

Other

Other2005 IEEE International Conference on Acoustics, Speech, and Signal Processing, ICASSP '05
CountryUnited States
CityPhiladelphia, PA
Period3/18/053/23/05

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    Tang, J., & Parhi, K. K. (2005). Viterbi decoder for high-speed ultra-wideband communication systems. In 2005 IEEE ICASSP '05 - Proc. - Design and Implementation of Signal Proces.Syst.,Indust. Technol. Track,Machine Learning for Signal Proces. Education, Spec. Sessions (pp. V37-V40). [1416234] (ICASSP, IEEE International Conference on Acoustics, Speech and Signal Processing - Proceedings; Vol. V). Institute of Electrical and Electronics Engineers Inc.. https://doi.org/10.1109/ICASSP.2005.1416234