Short Packet Structure for Ultra-Reliable Machine-Type Communication

Tradeoff between Detection and Decoding

Research output: Contribution to book/anthology/report/conference proceedingArticle in proceedingResearchpeer-review

1 Citation (Scopus)

Abstract

Machine-type communication requires rethinking of the structure of short packets due to the coding limitations and the significant role of the control information. In ultra-reliable low-latency communication (URLLC), it is crucial to optimally use the limited degrees of freedom (DoFs) to send data and control information. We consider a URLLC model for short packet transmission with acknow 1-edgement (ACK). We compare the detection/decoding performance of two short packet structures: (1) time-multiplexed detection sequence and data; and (2) structure in which both packet detection and data decoding use all DoFs. Specifically, as an instance of the second structure we use superimposed sequences for detection and data. We derive the probabilities of false alarm and misdetection for an AWGN channel and numerically minimize the packet error probability (PER), showing that for delay-constrained data and ACK exchange, there is a tradeoff between the resources spent for detection and decoding. We show that the optimal PER for the superimposed structure is achieved for higher detection overhead. For this reason, the PER is also higher than in the preamble case. However, the superimposed structure is advantageous due to its flexibility to achieve optimal operation without the need to use multiple codebooks.
Original languageEnglish
Title of host publication2018 IEEE International Conference on Acoustics, Speech and Signal Processing (ICASSP)
Number of pages5
PublisherIEEE
Publication date13 Sep 2018
ISBN (Print)978-1-5386-4659-5
ISBN (Electronic)978-1-5386-4658-8
DOIs
Publication statusPublished - 13 Sep 2018
Event2018 IEEE International Conference on Acoustics, Speech and Signal Processing (ICASSP) - Calgary, Canada
Duration: 15 Apr 201820 Apr 2018
https://2018.ieeeicassp.org/

Conference

Conference2018 IEEE International Conference on Acoustics, Speech and Signal Processing (ICASSP)
CountryCanada
CityCalgary
Period15/04/201820/04/2018
Internet address
SeriesProceedings of the IEEE International Conference on Acoustics, Speech, and Signal Processing
ISSN1520-6149

Fingerprint

Decoding
Communication
Error probability

Cite this

Bana, A-S., Trillingsgaard, K. F., Popovski, P., & Carvalho, E. D. (2018). Short Packet Structure for Ultra-Reliable Machine-Type Communication: Tradeoff between Detection and Decoding. In 2018 IEEE International Conference on Acoustics, Speech and Signal Processing (ICASSP) IEEE. Proceedings of the IEEE International Conference on Acoustics, Speech, and Signal Processing https://doi.org/10.1109/ICASSP.2018.8461650
Bana, Alexandru-Sabin ; Trillingsgaard, Kasper Fløe ; Popovski, Petar ; Carvalho, Elisabeth De. / Short Packet Structure for Ultra-Reliable Machine-Type Communication : Tradeoff between Detection and Decoding. 2018 IEEE International Conference on Acoustics, Speech and Signal Processing (ICASSP). IEEE, 2018. (Proceedings of the IEEE International Conference on Acoustics, Speech, and Signal Processing).
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title = "Short Packet Structure for Ultra-Reliable Machine-Type Communication: Tradeoff between Detection and Decoding",
abstract = "Machine-type communication requires rethinking of the structure of short packets due to the coding limitations and the significant role of the control information. In ultra-reliable low-latency communication (URLLC), it is crucial to optimally use the limited degrees of freedom (DoFs) to send data and control information. We consider a URLLC model for short packet transmission with acknow 1-edgement (ACK). We compare the detection/decoding performance of two short packet structures: (1) time-multiplexed detection sequence and data; and (2) structure in which both packet detection and data decoding use all DoFs. Specifically, as an instance of the second structure we use superimposed sequences for detection and data. We derive the probabilities of false alarm and misdetection for an AWGN channel and numerically minimize the packet error probability (PER), showing that for delay-constrained data and ACK exchange, there is a tradeoff between the resources spent for detection and decoding. We show that the optimal PER for the superimposed structure is achieved for higher detection overhead. For this reason, the PER is also higher than in the preamble case. However, the superimposed structure is advantageous due to its flexibility to achieve optimal operation without the need to use multiple codebooks.",
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Bana, A-S, Trillingsgaard, KF, Popovski, P & Carvalho, ED 2018, Short Packet Structure for Ultra-Reliable Machine-Type Communication: Tradeoff between Detection and Decoding. in 2018 IEEE International Conference on Acoustics, Speech and Signal Processing (ICASSP). IEEE, Proceedings of the IEEE International Conference on Acoustics, Speech, and Signal Processing, 2018 IEEE International Conference on Acoustics, Speech and Signal Processing (ICASSP), Calgary, Canada, 15/04/2018. https://doi.org/10.1109/ICASSP.2018.8461650

Short Packet Structure for Ultra-Reliable Machine-Type Communication : Tradeoff between Detection and Decoding. / Bana, Alexandru-Sabin; Trillingsgaard, Kasper Fløe; Popovski, Petar; Carvalho, Elisabeth De.

2018 IEEE International Conference on Acoustics, Speech and Signal Processing (ICASSP). IEEE, 2018. (Proceedings of the IEEE International Conference on Acoustics, Speech, and Signal Processing).

Research output: Contribution to book/anthology/report/conference proceedingArticle in proceedingResearchpeer-review

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T1 - Short Packet Structure for Ultra-Reliable Machine-Type Communication

T2 - Tradeoff between Detection and Decoding

AU - Bana, Alexandru-Sabin

AU - Trillingsgaard, Kasper Fløe

AU - Popovski, Petar

AU - Carvalho, Elisabeth De

PY - 2018/9/13

Y1 - 2018/9/13

N2 - Machine-type communication requires rethinking of the structure of short packets due to the coding limitations and the significant role of the control information. In ultra-reliable low-latency communication (URLLC), it is crucial to optimally use the limited degrees of freedom (DoFs) to send data and control information. We consider a URLLC model for short packet transmission with acknow 1-edgement (ACK). We compare the detection/decoding performance of two short packet structures: (1) time-multiplexed detection sequence and data; and (2) structure in which both packet detection and data decoding use all DoFs. Specifically, as an instance of the second structure we use superimposed sequences for detection and data. We derive the probabilities of false alarm and misdetection for an AWGN channel and numerically minimize the packet error probability (PER), showing that for delay-constrained data and ACK exchange, there is a tradeoff between the resources spent for detection and decoding. We show that the optimal PER for the superimposed structure is achieved for higher detection overhead. For this reason, the PER is also higher than in the preamble case. However, the superimposed structure is advantageous due to its flexibility to achieve optimal operation without the need to use multiple codebooks.

AB - Machine-type communication requires rethinking of the structure of short packets due to the coding limitations and the significant role of the control information. In ultra-reliable low-latency communication (URLLC), it is crucial to optimally use the limited degrees of freedom (DoFs) to send data and control information. We consider a URLLC model for short packet transmission with acknow 1-edgement (ACK). We compare the detection/decoding performance of two short packet structures: (1) time-multiplexed detection sequence and data; and (2) structure in which both packet detection and data decoding use all DoFs. Specifically, as an instance of the second structure we use superimposed sequences for detection and data. We derive the probabilities of false alarm and misdetection for an AWGN channel and numerically minimize the packet error probability (PER), showing that for delay-constrained data and ACK exchange, there is a tradeoff between the resources spent for detection and decoding. We show that the optimal PER for the superimposed structure is achieved for higher detection overhead. For this reason, the PER is also higher than in the preamble case. However, the superimposed structure is advantageous due to its flexibility to achieve optimal operation without the need to use multiple codebooks.

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Bana A-S, Trillingsgaard KF, Popovski P, Carvalho ED. Short Packet Structure for Ultra-Reliable Machine-Type Communication: Tradeoff between Detection and Decoding. In 2018 IEEE International Conference on Acoustics, Speech and Signal Processing (ICASSP). IEEE. 2018. (Proceedings of the IEEE International Conference on Acoustics, Speech, and Signal Processing). https://doi.org/10.1109/ICASSP.2018.8461650