Abstract
Recently, the industrial wireless sensor network (WSN) has gained attention as a complement to wired networks due to its flexibility and lower installation cost. We present a novel Reverse Packet Elimination (RPE) algorithm implementation at the IPv6 over the TSCH mode of IEEE 802.15.4e (6TiSCH) stack that increases reliability without significantly increasing energy consumption. RPE increases the reliability while conserving energy by transmitting a cancellation packet from the sink towards the sender to reduce unnecessary packets. The evaluation utilized mainly the 6TiSCH Simulator, with additional analytical assessments. We present several evaluation scenarios and compare WSN with and without RPE. In a WSN where each link had a packet reception rate of 70%, RPE increased the reliability with 11.8%. Furthermore, the average latency decreased with 39.1%. The average energy consumption increased with 19.8% when utilizing RPE. However, the network lifetime, i.e., the time before the first node experiences battery depletion increases slightly, which is a significant improvement compared to alternative replication mechanisms.
Highlights
Internet of Things (IoT) is emerging with an expectation of billions of connected devices to the Internet. These devices utilize low-power wireless communication technologies enabling long battery life and reliable end-to-end transmissions [1]. Capitalizing on this development, industries shift towards the Industrial Internet of Things (IIoT) through concepts such as Wireless Sensor Networks (WSN)
The IPv6 over the Time-Slotted Channel Hopping (TSCH) mode of Institute of Electrical and Electronics Engineers (IEEE) 802.15.4e (6TiSCH) working group [5] was started by Internet Engineering Task Force (IETF) with an intent to enable IP traffic for
This paper proposes a novel Reverse Packet Elimination (RPE) algorithm that aims at increasing reliability while limiting the negative effect of reduced network lifetime
Summary
Internet of Things (IoT) is emerging with an expectation of billions of connected devices to the Internet These devices utilize low-power wireless communication technologies enabling long battery life and reliable end-to-end transmissions [1]. RPE limits the negative effect of reduced network lifetime as the replicated packets are cancelled when the original packet successfully reached its destination. This is achieved as the RPE enables the sink to send a packet down the alternative path to eliminate the replicated packet from being transmitted upstream. The motivation for this is to avoid transmitting the replication packet if the original packet has arrived at its destination (the sink)
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