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DT-RPL: Diverse bidirectional traffic delivery through RPL routing protocol in low power and lossy networks

Cited 35 time in Web of Science Cited 46 time in Scopus
Authors

Kim, Hyung-Sin; Cho, Hosoo; Kim, Hongchan; Bahk, Saewoong

Issue Date
2017-10
Publisher
Elsevier BV
Citation
Computer Networks, Vol.126, pp.150-161
Abstract
As part of Internet of Things, low-power lossy network (LLN) applications are being diversified, which requires LLNs to support diverse traffic patterns. In this paper, we address performance issues of IPv6 routing protocol for LLNs (RPL) when delivering various traffic patterns. Specifically, we show that RPL was designed to mainly support upward traffic, and thus cannot construct reliable multi-hop routes for downward traffic-centric applications. To solve the problem effectively, we provide an improved RPL implementation, termed DT-RPL, which fast updates wireless link quality through both upward and downward traffic to support Diverse Traffic patterns. It is enabled to update routes in dynamic link environments regardless of traffic patterns. Our results in a multi-hop testbed over IEEE 802.15.4 links reveal that our scheme significantly improves RPL's performance in various traffic scenarios, in terms of packet delivery ratio, control overhead and radio energy consumption. (C) 2017 Published by Elsevier B.V.
ISSN
1389-1286
URI
https://hdl.handle.net/10371/203165
DOI
https://doi.org/10.1016/j.comnet.2017.07.001
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