Reliability-based incremental redundancy with convolutional codes

Eugene Visotsky; Yakun Sun; Vinayak Tripathi; Michael L. Honig; Roger Peterson

doi:10.1109/TCOMM.2005.850012

Reliability-based incremental redundancy with convolutional codes

Eugene Visotsky^*, Yakun Sun, Vinayak Tripathi, Michael L. Honig, Roger Peterson

^*Corresponding author for this work

Electrical and Computer Engineering

Research output: Contribution to journal › Article › peer-review

57 Scopus citations

Abstract

Incremental redundancy, or Hybrid type-II ARQ (HARQ), algorithms use a combination of forward error correction and retransmissions to guarantee reliable packet data communications. In this work, we propose a HARQ algorithm that exploits received packet reliability to improve system performance. Specifically, the receiver uses the average magnitude of the log-likelihood ratios of the information bits as the packet reliability metric, which is then used to determine the sizes of subsequent retransmissions. The proposed retransmission strategy attempts to maximize user throughput while satisfying a maximum packet delay constraint. The performance of our reliability-based HARQ algorithm is evaluated in static and time-varying channels through simulations. Furthermore, analytical results on the relationship between the reliability metric, the code rate and the block error rate are presented.

Original language	English (US)
Pages (from-to)	987-997
Number of pages	11
Journal	IEEE Transactions on Communications
Volume	53
Issue number	6
DOIs	https://doi.org/10.1109/TCOMM.2005.850012
State	Published - Jun 2005

Funding

Paper approved by L. Rasmussen, Editor for Iterative Detection, Decoding, and ARQ of the IEEE Communiations Society. Manuscript received March, 16, 2004; revised December 23, 2004. This work was supported in part by the Northwestern-Motorola Center for Communications. This paper was presented in part at the 2003 International Conference on Communications (ICC2003), Anchorage, AK, May 2003.

Keywords

Convolutional codes
Hybrid type-II ARQ (HARQ)
Incremential redundancy
Mobile radio cellular systems

ASJC Scopus subject areas

Electrical and Electronic Engineering

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10.1109/TCOMM.2005.850012

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title = "Reliability-based incremental redundancy with convolutional codes",

abstract = "Incremental redundancy, or Hybrid type-II ARQ (HARQ), algorithms use a combination of forward error correction and retransmissions to guarantee reliable packet data communications. In this work, we propose a HARQ algorithm that exploits received packet reliability to improve system performance. Specifically, the receiver uses the average magnitude of the log-likelihood ratios of the information bits as the packet reliability metric, which is then used to determine the sizes of subsequent retransmissions. The proposed retransmission strategy attempts to maximize user throughput while satisfying a maximum packet delay constraint. The performance of our reliability-based HARQ algorithm is evaluated in static and time-varying channels through simulations. Furthermore, analytical results on the relationship between the reliability metric, the code rate and the block error rate are presented.",

keywords = "Convolutional codes, Hybrid type-II ARQ (HARQ), Incremential redundancy, Mobile radio cellular systems",

author = "Eugene Visotsky and Yakun Sun and Vinayak Tripathi and Honig, {Michael L.} and Roger Peterson",

note = "Funding Information: Paper approved by L. Rasmussen, Editor for Iterative Detection, Decoding, and ARQ of the IEEE Communiations Society. Manuscript received March, 16, 2004; revised December 23, 2004. This work was supported in part by the Northwestern-Motorola Center for Communications. This paper was presented in part at the 2003 International Conference on Communications (ICC2003), Anchorage, AK, May 2003.",

year = "2005",

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AU - Visotsky, Eugene

AU - Sun, Yakun

AU - Tripathi, Vinayak

AU - Honig, Michael L.

AU - Peterson, Roger

N1 - Funding Information: Paper approved by L. Rasmussen, Editor for Iterative Detection, Decoding, and ARQ of the IEEE Communiations Society. Manuscript received March, 16, 2004; revised December 23, 2004. This work was supported in part by the Northwestern-Motorola Center for Communications. This paper was presented in part at the 2003 International Conference on Communications (ICC2003), Anchorage, AK, May 2003.

PY - 2005/6

Y1 - 2005/6

N2 - Incremental redundancy, or Hybrid type-II ARQ (HARQ), algorithms use a combination of forward error correction and retransmissions to guarantee reliable packet data communications. In this work, we propose a HARQ algorithm that exploits received packet reliability to improve system performance. Specifically, the receiver uses the average magnitude of the log-likelihood ratios of the information bits as the packet reliability metric, which is then used to determine the sizes of subsequent retransmissions. The proposed retransmission strategy attempts to maximize user throughput while satisfying a maximum packet delay constraint. The performance of our reliability-based HARQ algorithm is evaluated in static and time-varying channels through simulations. Furthermore, analytical results on the relationship between the reliability metric, the code rate and the block error rate are presented.

AB - Incremental redundancy, or Hybrid type-II ARQ (HARQ), algorithms use a combination of forward error correction and retransmissions to guarantee reliable packet data communications. In this work, we propose a HARQ algorithm that exploits received packet reliability to improve system performance. Specifically, the receiver uses the average magnitude of the log-likelihood ratios of the information bits as the packet reliability metric, which is then used to determine the sizes of subsequent retransmissions. The proposed retransmission strategy attempts to maximize user throughput while satisfying a maximum packet delay constraint. The performance of our reliability-based HARQ algorithm is evaluated in static and time-varying channels through simulations. Furthermore, analytical results on the relationship between the reliability metric, the code rate and the block error rate are presented.

KW - Convolutional codes

KW - Hybrid type-II ARQ (HARQ)

KW - Incremential redundancy

KW - Mobile radio cellular systems

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Reliability-based incremental redundancy with convolutional codes

Abstract

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Keywords

ASJC Scopus subject areas

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