SAS: Slot Allocation Scheme for the IEEE 802.15.4e LLDN mode

• Type: Article in International Conference Proceedings Book
• Date: 2016

Authors

Bitencort, B (Author) Other; Francisco Vasques (Author) FEUP; Paulo Portugal (Author) FEUP; Moraes, R (Author) Other

Conference proceedings International

Title: IECON Proceedings (Industrial Electronics Conference)

Pages: 4707-4712

42nd Conference of the Industrial Electronics Society, IECON 2016

24 October 2016 through 27 October 2016

Indexing

ISI Web of Knowledge - 0 Citations

Scopus - 1 Citation

Other information

Authenticus ID: P-00M-AMX

DOI: 10.1109/iecon.2016.7793054

Abstract (EN): Wireless sensor networks are being widely used to support time-critical applications, even knowing that previous versions of the IEEE 802.15.4 standard have a limited capacity to ensure a timely communication service. Its main limitation is the reduced number of available GTS slots. More recently, the IEEE 802.15.4e LLDN mode has been released to address this issue. It provides static TDMA-based communication, with a larger number of available slots to support time-critical communication. However, it does not provide any guidelines on how to allocate slots, in order to guarantee the message real-time requirements. In this paper, we propose a methodology to allocate LLDN slots based on the traffic load imposed by the supported message streams. The proposed allocation scheme is able to handle message streams with periodicities that are not multiple of the beacon interval, and also to support static and dynamic prioritizing of message streams.

Language: English

Type (Professor's evaluation): Scientific

No. of pages: 6