ABSAW: Adaptive Buffer Spray And Wait, Delay Tolerant Routing Protocol designed for the Internet of Things

Abstract

Delay Tolerant Network (DTN) is a class of network architectures designed for challenged networks. They primarily address the lack of network continuity, but can also simultaneously deal with other issues such as resource constraints and heterogeneity. This enables them to be studied in the recent decades as an alternative or extension of existing as well as promoting new routing protocols. Most recent DTN research attempts to redesign and propose solutions to support emerging network-based applications, for more delay, fault tolerance and flexibility. The most significant of these domains is the Internet of Things (IoT). The paper briefly surveys the similarities and areas of convergence in the use of DTN solutions in IoT applications. The design and implementation of a DTN-based routing protocol ABSAW, Adaptive Buffer Spray and Wait Protocol are proposed which can be a suitable alternative for buffer-constrained sensor-based IoT applications. The proposed protocol has been compared with three prevalent protocols, Epidemic, Spray & Wait, and ProPHET, and can be seen to outperform them in several evaluation metrics. The purpose of this work is to introduce a solution that enables delay-tolerant routing in IoT.