Research Article
Route-Over Forwarding Techniques in a 6LoWPAN
@ARTICLE{10.4108/mca.2.5.e5, author={Andreas Weigel and Martin Ringwelski and Volker Turau and Andreas Timm-Giel}, title={Route-Over Forwarding Techniques in a 6LoWPAN}, journal={EAI Endorsed Transactions on Mobile Communications and Applications}, volume={2}, number={5}, publisher={ICST}, journal_a={MCA}, year={2014}, month={12}, keywords={6LoWPAN, fragmentation, 802.15.4, CometOS, forwarding, route-over, wireless sensor networks}, doi={10.4108/mca.2.5.e5} }- Andreas Weigel
Martin Ringwelski
Volker Turau
Andreas Timm-Giel
Year: 2014
Route-Over Forwarding Techniques in a 6LoWPAN
MCA
ICST
DOI: 10.4108/mca.2.5.e5
Abstract
6LoWPAN plays a major role within the protocol stack for the future Internet of Things. Its fragmentation mechanism enables transport of IPv6 datagrams with the required minimum MTU of 1280 bytes over 802.15.4-based networks. With the goal of a fully standardized WSN protocol stack currently necessitating a route-over approach, i.e., routing at the IP-layer, there are two main choices for any 6LoWPAN implementation with regard to datagram fragmentation: Hop-by-hop assembly or a cross-layered direct mode, which forwards individual 6LoWPAN fragments before the whole datagram has arrived. In addition to these two straightforward approaches, we propose enhancements based on adaptive rate-restriction for the direct forwarding and a retry control for both modes to reduce the number of losses of larger datagrams. An evaluation of these modes in a simulation environment and a hardware testbed indicate that the proposed enhancements can considerably improve PRR and latency within 6LoWPAN networks.
Copyright © 2014 Ghada Arfaoui et al., licensed to ICST. This is an open access article distributed under the terms of the Creative Commons Attribution license (http://creativecommons.org/licenses/by/3.0/), which permits unlimited use, distribution and reproduction in any medium so long as the original work is properly cited.
