A low-latency turbo decoding scheme for diversities-based communication systems

Shen Ming Chung, Ming-Der Shieh, Lung Chih Kuo, Hsiao Hui Lee

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Abstract

Due to the superior error correction performance, Turbo Code has become one of the best choices to deal with errors induced from high-noise communication channels. Nevertheless, to achieve such a superior performance, it needs to repeat a probabilistic decoding operation over each corrupted data block for several times and thus exhibits considerable decoding latency. A decoding latency as such may forbid possible cost reduction on designing a communication receiver, especially when a strict round-trip latency is specified. This paper proposed a Turbo Decoding scheme which benefits from the diversity characteristic provisioned by some communication systems, and thus is able to efficiently reduce required decoding latency thereof. To verify the performance, the popular Max-Log-MAP algorithm has been cascaded with the proposed scheme and is simulated with a range of AWGN conditions. Possible alternatives to the proposed scheme are also presented while the trends of the resource utilization and the BER performance are presented and discussed. As the experimental result shows, the proposed Turbo decoding schemes can introduce at least 4x latency reduction comparing to the traditional scheme, while preserving an adequate decoding performance.

Original languageEnglish
Title of host publication6th International Conference on Signal Processing and Communication Systems, ICSPCS 2012 - Proceedings
DOIs
Publication statusPublished - 2012
Event6th International Conference on Signal Processing and Communication Systems, ICSPCS 2012 - Gold Coast, QLD, Australia
Duration: 2012 Dec 122012 Dec 14

Other

Other6th International Conference on Signal Processing and Communication Systems, ICSPCS 2012
CountryAustralia
CityGold Coast, QLD
Period12-12-1212-12-14

Fingerprint

Decoding
Communication systems
Turbo codes
Error correction
Cost reduction
Communication

All Science Journal Classification (ASJC) codes

  • Computer Networks and Communications
  • Signal Processing

Cite this

Chung, S. M., Shieh, M-D., Kuo, L. C., & Lee, H. H. (2012). A low-latency turbo decoding scheme for diversities-based communication systems. In 6th International Conference on Signal Processing and Communication Systems, ICSPCS 2012 - Proceedings [6507967] https://doi.org/10.1109/ICSPCS.2012.6507967
Chung, Shen Ming ; Shieh, Ming-Der ; Kuo, Lung Chih ; Lee, Hsiao Hui. / A low-latency turbo decoding scheme for diversities-based communication systems. 6th International Conference on Signal Processing and Communication Systems, ICSPCS 2012 - Proceedings. 2012.
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Chung, SM, Shieh, M-D, Kuo, LC & Lee, HH 2012, A low-latency turbo decoding scheme for diversities-based communication systems. in 6th International Conference on Signal Processing and Communication Systems, ICSPCS 2012 - Proceedings., 6507967, 6th International Conference on Signal Processing and Communication Systems, ICSPCS 2012, Gold Coast, QLD, Australia, 12-12-12. https://doi.org/10.1109/ICSPCS.2012.6507967

A low-latency turbo decoding scheme for diversities-based communication systems. / Chung, Shen Ming; Shieh, Ming-Der; Kuo, Lung Chih; Lee, Hsiao Hui.

6th International Conference on Signal Processing and Communication Systems, ICSPCS 2012 - Proceedings. 2012. 6507967.

Research output: Chapter in Book/Report/Conference proceedingConference contribution

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Chung SM, Shieh M-D, Kuo LC, Lee HH. A low-latency turbo decoding scheme for diversities-based communication systems. In 6th International Conference on Signal Processing and Communication Systems, ICSPCS 2012 - Proceedings. 2012. 6507967 https://doi.org/10.1109/ICSPCS.2012.6507967