On-the-Fly Bandwidth Reservation for 6TiSCH Wireless Industrial Networks

Palattella, Maria Rita; Watteyne, Thomas; Qin, Wang; Muraoka, Kazuyuki; Accettura, Nicola; Dujovne, Diego; Grieco, Luigi Alfredo; Engel, Thomas

doi:10.1109/jsen.2015.2480886

Cited by 119 publications

(88 citation statements)

References 17 publications

(22 reference statements)

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“…Another interesting approach is to perform multi-hop reservation and label switching [17]. On-the-fly resource reservation in a 6TiSCH context was demonstrated by Palattella et al [19], demonstrating reliable operation in a 50 node network (simulation).…”

Section: Schedulingmentioning

confidence: 99%

TSCH and 6TiSCH for Contiki: Challenges, Design and Evaluation

Duquennoy

Elsts

Nahas

et al. 2017

2017 13th International Conference on Distributed Computing in Sensor Systems (DCOSS)

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Abstract-Synchronized communication has recently emerged as a prime option for low-power critical applications. Solutions such as Glossy or Time Slotted Channel Hopping (TSCH) have demonstrated end-to-end reliability upwards of 99.99%. In this context, the IETF Working Group 6TiSCH is currently standardizing the mechanisms to use TSCH in low-power IPv6 scenarios. This paper identifies a number of challenges when it comes to implementing the 6TiSCH stack. It shows how these challenges can be addressed with practical solutions for locking, queuing, scheduling and other aspects.With this implementation as an enabler, we present an experimental validation and comparison with state-of-the-art MAC protocols. We conduct fine-grained energy profiling, showing the impact of link-layer security on packet transmission. We evaluate distributed time synchronization in a 340-node testbed, and demonstrate that tight synchronization (hundreds of microseconds) can be achieved at very low cost (0.3% duty cycle, 0.008% channel utilization). We finally compare TSCH against traditional MAC layers: low-power listening (LPL) and CSMA, in terms of reliability, latency and energy. We show that with proper scheduling, TSCH achieves by far the highest reliability, and outperforms LPL in both energy and latency.

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Section: Schedulingmentioning

confidence: 99%

TSCH and 6TiSCH for Contiki: Challenges, Design and Evaluation

Duquennoy

Elsts

Nahas

et al. 2017

2017 13th International Conference on Distributed Computing in Sensor Systems (DCOSS)

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“…The IETF 6TiSCH [12] working group allocates the scheduling functions to the 6TiSCH Operation Sublayer (6top) [36]. Accordingly, several TSCH scheduling techniques such as [6,9,10,22,23,25,33] in the network, the channel selection for hopping sequence list is not studied well. In this work, we focus on this task that has a high impact on the reliability of networks with external interference.…”

Section: Related Workmentioning

confidence: 99%

“…There is a considerable work done on increasing performance and end-to-end reliability of low-power TSCH mesh networks. This includes works on configuring and improving performance of TSCH itself such as [8,25,30,36,37], and also works that consider the layers on top of TSCH such as [12,13,18,23,24,34]. However, to meet the stringent requirements of industrial applications such as sub-second latency and reliable communications in in-vehicle networks, more work needs to be done [38].…”

Section: Introductionmentioning

confidence: 99%

Dependable Interference-Aware Time-Slotted Channel Hopping for Wireless Sensor Networks

Tavakoli

Nabi

Basten

et al. 2018

ACM Trans. Sen. Netw.

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IEEE 802.15.4 Time-Slotted Channel Hopping (TSCH) aims to improve communication reliability in Wireless Sensor Networks (WSNs) by reducing the impact of the medium access contention, multipath fading, and blocking of wireless links. While TSCH outperforms single channel communications, cross-technology interference on the license-free ISM bands may affect the performance of TSCH-based WSNs. For applications such as in-vehicle networks for which interference is dynamic over time, it leads to non-guaranteed reliability of the communications over time. This paper proposes an Enhanced version of the TSCH protocol together with a Distributed Channel Sensing technique (ETSCH+DCS) which dynamically detects good quality channels to be used for communication. The quality of channels is extracted using a combination of a central and a distributed channel-quality estimation technique. The central technique uses Non-Intrusive Channel-quality Estimation (NICE) technique which proactively performs energy detections in the idle part of each timeslot at the coordinator of the network. NICE enables ETSCH to follow dynamic interference, while it does not reduce throughput of the network. The distributed channel quality estimation technique is executed by all the nodes in the network, based on their communication history, to detect interference sources that are hidden from the coordinator. We did two sets of lab experiments with controlled interferers and a number of simulations using real-world interference data sets to evaluate ETSCH. Experimental and simulation results show that ETSCH improves reliability of network communications, compared to basic TSCH and the state of the art solution (ATSCH). In some experimental scenarios NICE itself has been able to increase the average packet reception ratio by 22% and shorten the length of burst packet losses by half, compared to the plain TSCH protocol. Further experiments show that DCS can reduce the effect of hidden interference (which is not detectable by NICE) on the packet reception ratio of the affected links by 50%.

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“…Orchestra exploits the robustness of TSCH. In [7], an On-The-Fly (OTF) bandwidth reservation module plays a complementary role for TSCH. This is a distributed approach for adapting the scheduled bandwidth to the network requirements.…”

Section: Related Workmentioning

confidence: 99%

“…Today, TDMA-based solutions for 802.15.4 networks have become available and research on scheduling algorithms is ongoing [5][6][7][8]. Barring some exceptions [9,10], today's 802.11 based solutions, however, still make use of CSMA/CA (Carrier Sense Multiple Access/Collission Avoidance), avoiding collisions by only transmitting when the channel is sensed idle [11].…”

Section: Introductionmentioning

confidence: 99%

Intelligent TDMA heuristic scheduling by taking into account physical layer interference for an industrial IoT environment

et al. 2017

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In an Internet of Things environment, where multiple mobile devices are brought together, it is not always possible to serve all these devices simultaneously. We developed an intelligent TDMA (Time Division Multiple Access) scheduler which allows to plan the individual packets of the different streams in such a way that everyone can be served by taking into account the interference on the physical layer. The scheduler is applied in a realistic industrial environment and evaluated based on the maximum link latency, the channel occupancy, and the jitter. Two strategies are compared: one where the packets are sequentially allocated, and one periodically. Our results show that the periodically allocated strategy performs the best for the maximum link latency (for a packet size below 1200 bytes) and for the jitter. The channel occupancy is similar for both strategies. Furthermore, the performance can be improved by using a higher number of channels. Compared to classic CSMA/CA (Carrier Sense Multiple Access with Collision Avoidance), the channel occupancy and the jitter are reduced up to 69.9% and 99.9%, respectively. Considering the maximum link latency, the proposed TDMA strategies perform significantly better than the worst case CSMA/CA (up to 99.8%), however, when assuming a best case CSMA/CA scenario, CSMA/CA performs better. Furthermore, we clearly show that there are cases where it is not possible to plan all streams when using CSMA/CA while this becomes feasible when applying the proposed TDMA strategies.

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On-the-Fly Bandwidth Reservation for 6TiSCH Wireless Industrial Networks

Cited by 119 publications

References 17 publications

TSCH and 6TiSCH for Contiki: Challenges, Design and Evaluation

TSCH and 6TiSCH for Contiki: Challenges, Design and Evaluation

Dependable Interference-Aware Time-Slotted Channel Hopping for Wireless Sensor Networks

Intelligent TDMA heuristic scheduling by taking into account physical layer interference for an industrial IoT environment

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