Adaptive Redundancy-Based Transmission for Wireless Sensor Networks
2019
Wireless Sensor Networks (WSNs) are built upon tens to thousands of sensor nodes dispersed
across a geographical area. Most sensor nodes have limited on-board resources, such as limited
computing capabilities and limited power. These issues can reduce the reliability of the sensor
nodes, which, in turn, affects the robustness of the WSN as a whole. One of the components that
can be affected is the data transmission system of the sensor nodes. We propose a reliable
transport layer protocol that uses a combination of redundant packets and probabilistic
transmission to ensure reliable transmission of data while maintaining the efficiency of the
network. The proposed protocol does not require acknowledgement packets, such as the
transmission control protocol (TCP) and yet its efficiency is similar to that of the user datagram
protocol (UDP). In this paper, we explain the proposed protocol and demonstrate how it can
achieve 7% improvements in reliability while maintaining 77% efficiency compared to UDP.
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