Relayer-Enabled Retransmission Scheduling in 802.15.4e LLDN—Exploring a Reinforcement Learning Approach

Relayer-Enabled Retransmission Scheduling in 802.15.4e LLDN—Exploring a Reinforcement Learning Approach

We consider the scheduling of retransmissions in the low-latency deterministic network (LLDN) extension to the IEEE 802.15.4 standard. We propose a number of retransmission schemes with varying degrees of required changes to the LLDN specification. In particular, we propose a retransmission scheme t...

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Bibliographic Details
Main Authors: Andreas Willig, Yakir Matusovsky, Adriel Kind
Format: Article
Language:English
Published: MDPI AG 2017-06-01
Series:Journal of Sensor and Actuator Networks
Subjects:
IEEE 802.15.4e
LLDN
retransmission scheduling
cooperative relayers
reinforcement learning
Online Access:http://www.mdpi.com/2224-2708/6/2/6
Description
Summary:We consider the scheduling of retransmissions in the low-latency deterministic network (LLDN) extension to the IEEE 802.15.4 standard. We propose a number of retransmission schemes with varying degrees of required changes to the LLDN specification. In particular, we propose a retransmission scheme that uses cooperative relayers and where the best relayer for a source node is learned using a reinforcement-learning method. The method allows for adapting relayer selections in the face of time-varying channels. Our results show that the relayer-based methods achieve a much better reliability over the other methods, both over static (but unknown) and over time-varying channels.
ISSN:2224-2708

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