Soft-decision error control for H.F. data transmission
- Creators
- Farrell, P. G.
- Goodman, R. M. F.
Abstract
This paper is concerned with the soft-decision decoding of error-correcting codes in the context of h.f. data transmission. The use of soft-decision information from the data modem results in an improvement in the performance of a forward-error-correction scheme, when compared with hard-decision decoding, without any further redundancy penalty. In the paper, we estimate the theoretical improvements that can be expected from soft-decision decoding of block and convolutional codes, in terms of both random and burst error-correcting power. Also, this is related to expected coding gains for the Gaussian and Rayleigh fading channels. In addition, we investigate the performance of soft-decision decoding on two types of h.f. modem: a multisubcarrier parallel transmission format (p.t.f.) type modem, and an experimental serial transmission s.m.i.d.d. type modem. We conclude that significant improvements in the performance of coded systems are obtainable through the use of soft-decision decoding.
Additional Information
© 1980 Institution of Electrical Engineers. Paper 94 IF, first received 6th March and in revised form 2nd July 1980. We would like to thank our colleagues E. Munday (University of Kent at Canterbury), A.D. Green and A.F.T. Winfield (University of Hull), and J. Gordon and N. Montague (Hatfield Polytechnic) for helpful discussions and valuable assistance.Attached Files
Published - 04644716.pdf
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Additional details
- Eprint ID
- 93816
- Resolver ID
- CaltechAUTHORS:20190314-130609070
- Created
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2019-03-14Created from EPrint's datestamp field
- Updated
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2021-11-16Created from EPrint's last_modified field