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

Margot Deruyck (UGent) , Jeroen Hoebeke (UGent) , Eli De Poorter (UGent) , Emmeric Tanghe (UGent) , Ingrid Moerman (UGent) , Piet Demeester (UGent) , Luc Martens (UGent) and Wout Joseph (UGent)
(2018) TELECOMMUNICATION SYSTEMS. 67(4). p.605-617
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Abstract
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 Time Division Multiple Access (TDMA) 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 Carrier Sense Multiple Access with Collision Avoidance (CSMA/CA), 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.
Keywords
NETWORKS, CSMA/CA, Heuristic scheduler, Industrial environment, Internet of Things, (IoT), Physical layer interference, TDMA

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Citation

Please use this url to cite or link to this publication:

Chicago
Deruyck, Margot, Jeroen Hoebeke, Eli De Poorter, Emmeric Tanghe, Ingrid Moerman, Piet Demeester, Luc Martens, and Wout Joseph. 2018. “Intelligent TDMA Heuristic Scheduling by Taking into Account Physical Layer Interference for an Industrial IoT Environment.” Telecommunication Systems 67 (4): 605–617.
APA
Deruyck, M., Hoebeke, J., De Poorter, E., Tanghe, E., Moerman, I., Demeester, P., Martens, L., et al. (2018). Intelligent TDMA heuristic scheduling by taking into account physical layer interference for an industrial IoT environment. TELECOMMUNICATION SYSTEMS, 67(4), 605–617.
Vancouver
1.
Deruyck M, Hoebeke J, De Poorter E, Tanghe E, Moerman I, Demeester P, et al. Intelligent TDMA heuristic scheduling by taking into account physical layer interference for an industrial IoT environment. TELECOMMUNICATION SYSTEMS. Dordrecht: Springer; 2018;67(4):605–17.
MLA
Deruyck, Margot, Jeroen Hoebeke, Eli De Poorter, et al. “Intelligent TDMA Heuristic Scheduling by Taking into Account Physical Layer Interference for an Industrial IoT Environment.” TELECOMMUNICATION SYSTEMS 67.4 (2018): 605–617. Print.
@article{8557790,
  abstract     = {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 Time Division Multiple Access (TDMA) 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 Carrier Sense Multiple Access with Collision Avoidance (CSMA/CA), 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.},
  author       = {Deruyck, Margot and Hoebeke, Jeroen and De Poorter, Eli and Tanghe, Emmeric and Moerman, Ingrid and Demeester, Piet and Martens, Luc and Joseph, Wout},
  issn         = {1018-4864},
  journal      = {TELECOMMUNICATION SYSTEMS},
  keyword      = {NETWORKS,CSMA/CA,Heuristic scheduler,Industrial environment,Internet of Things,(IoT),Physical layer interference,TDMA},
  language     = {eng},
  number       = {4},
  pages        = {605--617},
  publisher    = {Springer},
  title        = {Intelligent TDMA heuristic scheduling by taking into account physical layer interference for an industrial IoT environment},
  url          = {http://dx.doi.org/10.1007/s11235-017-0359-3},
  volume       = {67},
  year         = {2018},
}

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