NDLI: Generalizations of the Viterbi algorithm with applications to mobile radio systems

Content Provider	IEEE Xplore Digital Library
Author	Sundberg, C.-E.W.
Copyright Year	1992
Description	Author affiliation: Signal Processing Res. Dept., AT&T Bell Labs., Murray Hill, NJ, USA (Sundberg, C.-E.W.)
Abstract	Gives a brief overview of recent work on generalizations of the classic Viterbi algorithm (VA) in communication systems which use different types of concatenated coding schemes. The usefulness of the algorithms is illustrated by giving applications to speech and data transmission in mobile radio systems. Two classes of algorithms are considered, namely list output VA (or LVA) and soft symbol output VA (or SOVA). The LVA gives a list of the most likely output sequences while the SOVA gives output symbol by symbol reliability information. The additional list or soft symbol information is then processed by the next decoding stage. An overview is given of specific LVA and SOVA schemes including complexity and delay issues. It is demonstrated how gains in power and/or bandwidth are obtained with list and soft output VA over schemes with a conventional hard sequence output, at the expense of increased signal processing cost.
Starting Page	11
Ending Page	14
File Size	437157
Page Count	4
File Format	PDF
ISBN	0780307232
DOI	10.1109/ICWC.1992.200701
Language	English
Publisher	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Publisher Date	1992-06-25
Publisher Place	Canada
Access Restriction	Subscribed
Rights Holder	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Subject Keyword	Viterbi algorithm Signal processing algorithms Concatenated codes Speech Data communication Land mobile radio Power system reliability Decoding Delay Bandwidth
Content Type	Text
Resource Type	Article

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3	National Digital Library of India Office, Indian Institute of Technology Kharagpur	The administrative and infrastructural headquarters of the project	Dr. B. Sutradhar bsutra@ndl.gov.in
4	Project PI / Joint PI	Principal Investigator and Joint Principal Investigators of the project	Dr. B. Sutradhar bsutra@ndl.gov.in Prof. Saswat Chakrabarti will be added soon
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