Guard Time Optimisation for Energy Efficiency in IEEE 802.15.4-2015 TSCH Links

  • Georgios Z. Papadopoulos
  • Alexandros Mavromatis
  • Xenofon Fafoutis
  • Robert Piechocki
  • Theo Tryfonas
  • George Oikonomou
Conference paper
Part of the Lecture Notes of the Institute for Computer Sciences, Social Informatics and Telecommunications Engineering book series (LNICST, volume 190)

Abstract

Time Slotted Channel Hopping (TSCH) is among the Medium Access Control (MAC) schemes defined in the IEEE 802.15.4-2015 standard. TSCH aims to guarantee high-level network reliability by keeping nodes time-synchronised. In order to ensure successful communication between a sender and a receiver, the latter starts listening shortly before the expected time of a MAC layer frame’s arrival. The offset between the time a node starts listening and the estimated time of frame arrival is called guard time and it aims to reduce the probability of missed frames due to clock drift. In this paper, we investigate the impact of the guard time length on network performance. We identify that, when using the 6TiSCH minimal schedule, the most significant cause of energy consumption is idle listening during guard time. Therefore, we perform empirical optimisations on the guard time to maximise the energy-efficiency of a TSCH link. Our experiments, conducted using the Contiki OS, show that optimal guard time configuration can reduce energy consumption by up to 40%, without compromising network reliability.

Keywords

Internet of Things IEEE 802.15.4-2015 TSCH Synchronisation Guard time Performance evaluation Energy consumption 

Notes

Acknowledgements

This work was partially performed under IRC-SPHERE funded by EPSRC, Grant EP/K031910/1.

References

  1. 1.
    IEEE Standard for Low-Rate Wireless Personal Area Networks (LR-WPANs), IEEE Std 802.15.4-2015 (Revision of IEEE Std 802.15.4-2011), April 2016Google Scholar
  2. 2.
    Bachir, A., Dohler, M., Watteyne, T., Leung, K.: MAC essentials for wireless sensor networks. Commun. Surv. Tutorials 12(2), 222–248 (2010)CrossRefGoogle Scholar
  3. 3.
    Watteyne, T., Mehta, A., Pister, K.: Reliability through frequency diversity: why channel hopping makes sense. In: Proceedings of the 6th ACM Symposium on Performance Evaluation of Wireless Ad Hoc, Sensor, and Ubiquitous Networks, pp. 116–123 (2009)Google Scholar
  4. 4.
    Watteyne, T., Palattella, M., Grieco, L.: Using IEEE 802.15.4e Time-Slotted Channel Hopping (TSCH) in the Internet of Things (IoT): Problem Statement. RFC 7554 (2015)Google Scholar
  5. 5.
    Mavromatis, A., Papadopoulos, G.Z., Fafoutis, X., Elsts, A., Oikonomou, G., Tryfonas, T.: Impact of guard time length on IEEE 802.15.4e TSCH energy consumption. In: Proceedings of the IEEE International Conference on Sensing, Communication and Networking (SECON) (2016)Google Scholar
  6. 6.
    Chang, T., Watteyne, T., Pister, K., Wang, Q.: Adaptive synchronization in multi-hop TSCH networks. Comput. Netw. 76, 165–176 (2015)CrossRefGoogle Scholar
  7. 7.
    Winter, T., Thubert, P., Brandt, A., Hui, J., Kelsey, R., Levis, P., Pister, K., Struik, R., Vasseur, J., Alexander, R.: RPL: IPv6 routing protocol for low-power and lossy networks. RFC 6550 (2012)Google Scholar
  8. 8.
    Fafoutis, X., Janko, B., Mellios, E., Hilton, G., Sherratt, R.S., Piechocki, R., Craddock, I.: SPW-1: a low-maintenance wearable activity tracker for residential monitoring and healthcare applications. In: Proceedings of the EAI International Conference on Wearables in Healthcare (HealthWear) (2016)Google Scholar
  9. 9.
    Papadopoulos, G.Z., Beaudaux, J., Gallais, A., Noel, T., Schreiner, G.: Adding value to WSN simulation using the IoT-LAB experimental platform. In: Proceedings of the 9th IEEE International Conference on Wireless and Mobile Computing, Networking and Communications (WiMob), pp. 485–490 (2013)Google Scholar

Copyright information

© ICST Institute for Computer Sciences, Social Informatics and Telecommunications Engineering 2017

Authors and Affiliations

  • Georgios Z. Papadopoulos
    • 2
  • Alexandros Mavromatis
    • 1
  • Xenofon Fafoutis
    • 1
  • Robert Piechocki
    • 1
  • Theo Tryfonas
    • 1
  • George Oikonomou
    • 1
  1. 1.Faculty of EngineeringUniversity of BristolBristolUK
  2. 2.IRISA, Télécom BretagneInstitut Mines-TélécomParisFrance

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