Publication Type
Journal Article
Version
acceptedVersion
Publication Date
5-1989
Abstract
High-rate concatenated coding systems with bandwidth-efficient trellis inner codes and Reed-Solomon (RS) outer codes are investigated for application in high-speed satellite communication systems. Two concatenated coding schemes are proposed. In one the inner code is decoded with soft-decision Viterbi decoding, and the outer RS code performs error-correction-only decoding (decoding without side information). In the other the inner code is decoded with a modified Viterbi algorithm, which produces reliability information along with the decoded output. In this algorithm, path metrics are used to estimate the entire information sequence, whereas branch metrics are used to provide reliability information on the decoded sequence. This information is used to erase unreliable bits in the decoded output. An errors-and-erasures RS decoder is then used for the outer code. The two schemes have been proposed for high-speed data communication on NASA satellite channels. The rates considered are at least double those used in current NASA systems, and the results indicate that high system reliability can still be achieved
Discipline
Information Security
Research Areas
Information Security and Trust
Publication
IEEE Transactions on Communications
Volume
37
Issue
10
First Page
1091
Last Page
1096
ISSN
0090-6778
Identifier
10.1109/26.24593
Publisher
IEEE
Citation
DENG, Robert H. and Costello, Jr., D. J..
High rate concatenated coding systems using bandwidth efficient trellis inner codes. (1989). IEEE Transactions on Communications. 37, (10), 1091-1096.
Available at: https://ink.library.smu.edu.sg/sis_research/102
Creative Commons License
This work is licensed under a Creative Commons Attribution-NonCommercial-No Derivative Works 4.0 International License.
Additional URL
https://doi.org/10.1109/26.24593