Persistent Link:
http://hdl.handle.net/10150/609391
Title:
Dual-K Convolutional Codes for Noncoherently Demodulated Channels
Author:
Odenwalder, U. P.
Affiliation:
LINDABIT Corporation
Issue Date:
1976-09
Rights:
Copyright © International Foundation for Telemetering
Collection Information:
Proceedings from the International Telemetering Conference are made available by the International Foundation for Telemetering and the University of Arizona Libraries. Visit http://www.telemetry.org/index.php/contact-us if you have questions about items in this collection.
Publisher:
International Foundation for Telemetering
Journal:
International Telemetering Conference Proceedings
Abstract:
While the advantages of convolutional coding for coherently demodulated channels have become widely accepted, less work has been done on coding techniques for noncoherently demodulated channels used in channels experiencing fading or intentional interference. Here we describe a simple class of convolutional codes called dual-k [1] codes for use on 2ᵏ-ary orthogonal signal modulated channels and show how they can be used with soft-decision Viterbi decoding on noncoherently demodulated channels. The main result of this paper is a derivation of a closed form expression for the transfer function [2], T(D,N,L), for optimum (in the sense of best Hamming distance) dual-k convolutional codes. Examples of the technique of obtaining upper bounds on the bit error probability using this transfer function are also given for a noncoherently demodulated Rayleigh fading channel.
Sponsors:
International Foundation for Telemetering
ISSN:
0884-5123; 0074-9079
Additional Links:
http://www.telemetry.org/

Full metadata record

DC FieldValue Language
dc.language.isoen_USen
dc.titleDual-K Convolutional Codes for Noncoherently Demodulated Channelsen_US
dc.contributor.authorOdenwalder, U. P.en
dc.contributor.departmentLINDABIT Corporationen
dc.date.issued1976-09en
dc.rightsCopyright © International Foundation for Telemeteringen
dc.description.collectioninformationProceedings from the International Telemetering Conference are made available by the International Foundation for Telemetering and the University of Arizona Libraries. Visit http://www.telemetry.org/index.php/contact-us if you have questions about items in this collection.en
dc.publisherInternational Foundation for Telemeteringen
dc.description.abstractWhile the advantages of convolutional coding for coherently demodulated channels have become widely accepted, less work has been done on coding techniques for noncoherently demodulated channels used in channels experiencing fading or intentional interference. Here we describe a simple class of convolutional codes called dual-k [1] codes for use on 2ᵏ-ary orthogonal signal modulated channels and show how they can be used with soft-decision Viterbi decoding on noncoherently demodulated channels. The main result of this paper is a derivation of a closed form expression for the transfer function [2], T(D,N,L), for optimum (in the sense of best Hamming distance) dual-k convolutional codes. Examples of the technique of obtaining upper bounds on the bit error probability using this transfer function are also given for a noncoherently demodulated Rayleigh fading channel.en
dc.description.sponsorshipInternational Foundation for Telemeteringen
dc.identifier.issn0884-5123en
dc.identifier.issn0074-9079en
dc.identifier.urihttp://hdl.handle.net/10150/609391en
dc.identifier.journalInternational Telemetering Conference Proceedingsen
dc.typetexten
dc.typeProceedingsen
dc.relation.urlhttp://www.telemetry.org/en
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