NDLI: Concatenated trellis/high-rate Reed-Solomon and projection codes

Content Provider	IEEE Xplore Digital Library
Author	Siveski, Z. Bozovic, R. Schilling, D.L.
Copyright Year	1989
Description	Author affiliation: Dept. of Electr. Eng., City Coll. of New York, NY, USA (Siveski, Z.)
Abstract	A concatenated coding scheme consisting of trellis-coded modulation (TCM) and either Reed-Solomon (RS) or projection outer code is considered. TCM alone, employing M-ary phase-shift keying (PSK) offers the same spectral efficiency as baseline uncoded M/2-PSK at greatly improved error-rate performance. The Viterbi decoder performs a soft decision on data corrupted by Gaussian noise for the inner code. Two different outer codes are considered. One is a low-redundancy RS code with code length of 255 symbols. The RS decoder complements the error-correcting capabilities of the inner code with its ability to correct bursts of bits in error presented at its input. Another outer code is projection code that offers flexibility in code rate and is capable of correcting both random and burst errors. If high-rate outer code is chosen, the combined scheme will have almost the same spectral efficiency as the baseline uncoded system. The concatenated system provides more dramatic improvement, up to 2 dB, in additional coding gain at moderate SNR values.<>
Starting Page	563
Ending Page	567
File Size	462624
Page Count	5
File Format	PDF
DOI	10.1109/ICC.1989.49759
Language	English
Publisher	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Publisher Date	1989-06-11
Publisher Place	USA
Access Restriction	Subscribed
Rights Holder	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Subject Keyword	Concatenated codes Reed-Solomon codes Bandwidth Modulation coding Decoding Error correction codes Redundancy Digital modulation Educational institutions Convolutional codes
Content Type	Text
Resource Type	Article

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