Reducing Association Latency of Mobile Devices in IEEE 802.15.4e Low Latency Deterministic Networks

Darbandi, Armaghan; Lee, Seungho; Kim, Myung Kyun

doi:10.14257/astl.2018.150.09

Cited by 1 publication

(2 citation statements)

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“…This work was supported by the 2018 Research Fund of University of Ulsan. This paper is a revised and expanded version of a paper entitled "Reducing Association Latency of Mobile Devices in IEEE 802.15.4e Low Latency Deterministic Networks", presented at the 10 th International Conference on Advanced Science and Technology, Ho Chi Minh, Vietnam, February 1-3, 2018 [19].…”

Section: Acknowledgmentsmentioning

confidence: 99%

“…The relay nodes extend the network coverage area and boost the reliability via retransmitting unsuccessfully delivered packets. In [19], we propose modifications to the LLDN superframe structures, in order to reduce the association latency incurred for new mobile devices which aim to joining the PAN coordinator. Despite the fact that, our proposed approach introduces modifications in LLDN standard, but the results demonstrate that these modifications allow an increase of determinism in Configuration and Discovery states, and it significantly reduces association latency.…”

Section: Introductionmentioning

confidence: 99%

See 1 more Smart Citation

Mobility Overhead in IEEE 802.15.4e Low Latency Deterministic Networks

Darbandi¹,

Kim²

2018

IJCA

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IEEE 802.15.4 standard has a limited capacity to ensure low latency for time-critical industrial applications. The IEEE 802.15.4e LLDN mode has been specifically designed for industrial applications requiring low latency and round trip time. One of the main characteristics of LLDN regards the support of device mobility. The mobile devices aiming at association with the PAN coordinator are discovered and configured during discovery and configuration states. These states are isolated from the online state during which transmission of regular readings occurs. As discovery state, configuration state and online state utilize a shared single channel, a long association time at discovery and configuration states leads to a long delay for data transmission in online state, and vice versa. In this paper, we propose a modified superframe structure for fast discovery of mobile devices. Our goal is to minimize association latency for new devices by reducing the latency to enter into the online state. We show the efficiency of our proposed superframe structure compared with the default LLDN via our analysis.

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Section: Acknowledgmentsmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%