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| Content Provider | IEEE Xplore Digital Library |
|---|---|
| Author | Haberl, Karl R. Cortizas, Anthony P. |
| Copyright Year | 1986 |
| Description | Author affiliation: RCA Automated Systems Division, P.O. Box 588, Burlington, Massachusetts 01803 (Haberl, Karl R.; Cortizas, Anthony P.) |
| Abstract | A communications protocol with error correction/detection is described that was designed for the transfer of data files over a half-duplex secure radio link in a channel environment expected to exhibit burst errors and random errors at a bit error rate (BER) as high as $10^{-2}.$ This system is being implemented as part of a military tactical communications system. The communications techniques described offer robust performance over poor transmission channels with a practical implementation for tactical applications. Error correction/detection is performed by a concatenated block code featuring an inner binary shortened-extended Hamming(12,7) code and an outer shortened Reed-Solomon(32,28) code over $GF(2^{7})$ with degree-32 character interleaving. The protocol employed is a point-to-point, half-duplex, hybrid-ARQ protocol with selective retransmission. Theoretical performance estimates have been obtained. At a channel BER of $10^{-2},$ the probability that a single transmission of a maximum length packet (containing 198,656 bits) will be decoded correctly is greater than 0.998; the undetected character error probability per 7-bit information character is 6.1 × $10^{-7};$ the decoded BER is 8.7 × $10^{-8};$ and the protocol efficiency (assuming channel idle time due to equipment delays in reversing the direction of transmission of 16,000 bits per packet transmission) is 42%. Performance estimates for channel BERs of interest were verified using a FORTRAN implementation of the concatenated code on a simulated random error channel. The single burst error correction capability is 760 bits per 12,288-bit data block. |
| File Size | 838731 |
| File Format | |
| DOI | 10.1109/MILCOM.1986.4805697 |
| Language | English |
| Publisher | Institute of Electrical and Electronics Engineers, Inc. (IEEE) |
| Publisher Date | 1986-10-05 |
| Publisher Place | USA |
| Access Restriction | Subscribed |
| Rights Holder | Institute of Electrical and Electronics Engineers, Inc. (IEEE) |
| Subject Keyword | Protocols Concatenated codes Reed-Solomon codes Error correction Bit error rate Decoding Radio link Military communication Communication systems Robustness |
| Content Type | Text |
| Resource Type | Article |
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