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Relaying with Packet Aggregation for Half-Duplex All-to-All Broadcast in Time-Critical Wireless Networks
Halmstad University, School of Information Technology, Halmstad Embedded and Intelligent Systems Research (EIS), Centre for Research on Embedded Systems (CERES).
Halmstad University, School of Information Technology, Halmstad Embedded and Intelligent Systems Research (EIS), Centre for Research on Embedded Systems (CERES). Mälardalen University, Västerås, Sweden.ORCID iD: 0000-0001-6497-4099
Halmstad University, School of Information Technology, Halmstad Embedded and Intelligent Systems Research (EIS), Centre for Research on Embedded Systems (CERES).ORCID iD: 0000-0002-6526-3931
(English)Conference paper, Published paper (Other academic)
Abstract [en]

Wireless automation and control networks, with stringent latency and reliability requirements, typically use half-duplex communications combined with deadline-aware scheduling of time slots to nodes. To introduce higher reliability in legacy industrial control systems, extra time slots are usually reserved for retransmissions. However, in distributed wireless control systems, where sensor data from several different nodes must be timely and reliably available at all places where controller decisions are made, this is particularly cumbersome as all nodes may not hear each other and extra time slots imply increased delay. To enable all-to-all broadcast with manageable overhead and complexity in such systems, we therefore propose a novel relaying strategy using packet aggregation. The strategy assigns relayers to time slots, as well as determines which packets to aggregate in each slot, using a low-complexity algorithm such that ultra-reliable communications can be obtained with maintained end-to-end latency.

Keyword [en]
Broadcasting, Error Probability, Latency, Reliability
National Category
Communication Systems
Identifiers
URN: urn:nbn:se:hh:diva-35192OAI: oai:DiVA.org:hh-35192DiVA: diva2:1149061
Conference
2017 IEEE GLOBECOM, Singapore, Singapore, December 4-8, 2017
Projects
SIDUSSafeCOP
Funder
Knowledge Foundation, 20130086 READY
Note

Accepted; As manuscript in thesis; Funding: Knowledge Foundation through the SIDUS project 20130086 READY and from the SafeCOP project, funded from the ECSEL Joint Undertaking under grant agreement n 692529, and from National funding.

Available from: 2017-10-13 Created: 2017-10-13 Last updated: 2017-10-31

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Hoang, Le-NamUhlemann, ElisabethJonsson, Magnus

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CiteExportLink to record
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Citation style
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