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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 acknowledgement (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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Paper Details

Authors:
Alexandru-Sabin Bana, Kasper Fløe Trillingsgaard, Petar Popovski, Elisabeth de Carvalho
Submitted On:
14 April 2018 - 5:56pm
Short Link:
Type:
Presentation Slides
Event:
Presenter's Name:
Alexandru-Sabin Bana
Paper Code:
#4279
Document Year:
2018
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Document Files

icassp_ASB_short_pkt_struc_v3.pdf

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[1] Alexandru-Sabin Bana, Kasper Fløe Trillingsgaard, Petar Popovski, Elisabeth de Carvalho, "Short packet structure for ultra-reliable machine-type communication: tradeoff between detection and decoding", IEEE SigPort, 2018. [Online]. Available: http://sigport.org/2856. Accessed: Jun. 21, 2018.
@article{2856-18,
url = {http://sigport.org/2856},
author = {Alexandru-Sabin Bana; Kasper Fløe Trillingsgaard; Petar Popovski; Elisabeth de Carvalho },
publisher = {IEEE SigPort},
title = {Short packet structure for ultra-reliable machine-type communication: tradeoff between detection and decoding},
year = {2018} }
TY - EJOUR
T1 - Short packet structure for ultra-reliable machine-type communication: tradeoff between detection and decoding
AU - Alexandru-Sabin Bana; Kasper Fløe Trillingsgaard; Petar Popovski; Elisabeth de Carvalho
PY - 2018
PB - IEEE SigPort
UR - http://sigport.org/2856
ER -
Alexandru-Sabin Bana, Kasper Fløe Trillingsgaard, Petar Popovski, Elisabeth de Carvalho. (2018). Short packet structure for ultra-reliable machine-type communication: tradeoff between detection and decoding. IEEE SigPort. http://sigport.org/2856
Alexandru-Sabin Bana, Kasper Fløe Trillingsgaard, Petar Popovski, Elisabeth de Carvalho, 2018. Short packet structure for ultra-reliable machine-type communication: tradeoff between detection and decoding. Available at: http://sigport.org/2856.
Alexandru-Sabin Bana, Kasper Fløe Trillingsgaard, Petar Popovski, Elisabeth de Carvalho. (2018). "Short packet structure for ultra-reliable machine-type communication: tradeoff between detection and decoding." Web.
1. Alexandru-Sabin Bana, Kasper Fløe Trillingsgaard, Petar Popovski, Elisabeth de Carvalho. Short packet structure for ultra-reliable machine-type communication: tradeoff between detection and decoding [Internet]. IEEE SigPort; 2018. Available from : http://sigport.org/2856