Congestion Detection and Control for 6TiSCH Networks in IIoT Applications

Farag, Hossam; Österberg, Patrik; Gidlund, Mikael

doi:10.1109/icc40277.2020.9149365

Cited by 10 publications

(8 citation statements)

References 14 publications

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“…Moreover, the reason for decreased performance over larger networks is that the more denser the network, the higher is the interference and the strain over bottlenecks nodes closer to the DAG root [25]. This loss in performance is most noticeable in 2.4GHz operating bands mainly due to its weaker sensitivity.…”

Section: Resultsmentioning

confidence: 99%

Improving 6TiSCH Reliability and Latency with Simultaneous Multi-Band Operation

Bunn

2022

Anais Do XL Simpósio Brasileiro De Telecomunicações E Processamento De Sinais

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The Internet Engineering Task Force (IETF) group "IPv6 over the TSCH mode of IEEE 802.15.4e" (6TiSCH) introduced a protocol, utilizing Time-Slotted Channel Hopping (TSCH) from IEEE802.15.4e, that achieves industrial performance requirements while offering the benefits of IP connectivity. This work proposes the addition of a second radio interface in 6TiSCH devices to operate a parallel network in sub-GHz, introducing transmit diversity while benefiting from reduced pathloss and interference. Simulation results show an improvement of 25% in Packet Delivery Ratio (PDR) and around 30% in latency in different network scenarios.

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Section: Resultsmentioning

confidence: 99%

Improving 6TiSCH Reliability and Latency with Simultaneous Multi-Band Operation

Bunn

2022

Anais Do XL Simpósio Brasileiro De Telecomunicações E Processamento De Sinais

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“…The authors argued that efficiency of changing the device parent with a high QU would not be enough for load balancing, and that it is necessary to propagate the high QU information to induce the child devices to migrate to another parent. Similarly, a congestion detection and control method that uses the QU of each device and its parent as a metric has been proposed [34]. The method facilitates load balancing by inducing parent changes according to the degree of congestion in various traffic environments.…”

Section: Related Workmentioning

confidence: 99%

Traffic-Aware 6TiSCH Routing Method for IIoT Wireless Networks

Chung

2022

IEEE Internet Things J.

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The 6TiSCH network is a key technology of the industrial internet of things (IIoT), providing high reliability and deterministic features. However, IIoT sensors and facility applications generate heavy traffic loads. Various time-slotted channel hopping (TSCH) medium access layer (MAC) and routing protocols for low-power and lossy network (RPL) methods have been studied at each network layer to address this issue. Although TSCH MAC is standard for IIoT low-rate wireless networks, it has not been adequately considered in conventional RPL studies. Conventional RPL methods do not effectively utilize the characteristics of the TSCH MAC in heavy-traffic networks and may hinder performance. In this article, we introduce a trafficaware RPL method that utilizes the cell allocation information of TSCH MAC. The number of allocated TSCH cells determines the bandwidth reserved by each node and includes the link quality and traffic information measured by the MAC layer. Traffic-aware RPL facilitates efficient load balancing using cell allocation information and improves the bandwidth utilization of the network. Additionally, the proposed method can improve the deterministic features of the IIoT wireless network because the effect of the routing decision of each device can be predicted. Moreover, the packet delivery ratio and bandwidth utilization are improved by up to 31% and 20%, respectively, compared with the conventional methods based on simulation and testbed evaluations. Index Terms-6TiSCH, IEEE802.15.4, industrial internet of things, load balancing, routing protocol for low-power and lossy network, time-slotted channel hopping, wireless network.

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“…The latter can be observed in nodes near the DODAG root, which have a higher probability of being the preferred parent by multiple nodes. This unbalanced network overload can create bottlenecks that result in packet drops [46]. The longer communication links in the 868 Mhz band, and therefore fewer transmission hops, increase the probability of unbalanced RPL topologies with congested queues.…”

Section: A Packet Delivery Ratiomentioning

confidence: 99%

“…Moreover, the reason for decreased performance over larger networks is that the more denser the network, the higher is the interference and the strain over bottlenecks nodes closer to the DAG root [46]. This loss in performance is most noticeable in 2.4GHz operating bands mainly due to its weaker sensitivity.…”

Section: A Packet Delivery Ratiomentioning

confidence: 99%

Improving 6TiSCH Reliability and Latency with Simultaneous Multi-Band Operation

Bunn¹,

Souza²,

Moritz³

2021

Preprint

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The Internet Engineering Task Force (IETF) group "IPv6 over the TSCH mode of IEEE 802.15.4e" (6TiSCH) introduced a protocol, utilizing Time-Slotted Channel Hopping (TSCH) from IEEE802.15.4e due to its high reliability and timedeterministic characteristic, that achieves industrial performance requirements while offering the benefits of IP connectivity. This work proposes the addition of a second radio interface in 6TiSCH devices to operate a parallel network in sub-GHz, introducing transmit diversity while benefiting from decreased path-loss and reduced interference. Simulation results show an improvement of 25% in Packet Delivery Ratio (PDR) and closely to 30% in latency in different 6TiSCH networks scenarios.

show abstract

Congestion Detection and Control for 6TiSCH Networks in IIoT Applications

Cited by 10 publications

References 14 publications

Improving 6TiSCH Reliability and Latency with Simultaneous Multi-Band Operation

Improving 6TiSCH Reliability and Latency with Simultaneous Multi-Band Operation

Traffic-Aware 6TiSCH Routing Method for IIoT Wireless Networks

Improving 6TiSCH Reliability and Latency with Simultaneous Multi-Band Operation

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