Minimum energy transmission forest‐based geocast in software‐defined wireless sensor networks

Abstract

Wireless Sensor Networks (WSNs)‐based geographic addressing and routing have many potential applications. Geocast protocols should be made energy efficient to increase the lifetime of nodes and packet delivery ratio. This technique will increase the number of live nodes, reduce message costs, and enhance network throughput. All geocast protocols in the literature of WSN apply mostly restricted flooding and perimeter flooding, which is why still the redundancy they produce significantly high message transmission costs and unnecessarily eats up immense energy of the nodes. Moreover, perimeter flooding cannot succeed in the presence of holes. The present article models WSN with software‐defined (SD) constructs where the network area is divided into some zones. Energy‐efficient transmission tree(s) are constructed in the geocast area to organize the flow of data packets and their links. Therefore, redundancy in the transmission is eliminated while maintaining network throughput as good as regular flooding. Besides, this study introduces a fuzzy controllers named SELECT‐STARTER and GEOCAST‐PROPAGATOR for intellgent energy tansmission control‐making. The proposed technique significantly reduces energy cost and improves nodes' lifetime to function for higher time duration and produce a higher data packet delivery ratio. To the best of the author's knowledge, this is the first work on geocast in SD‐WSNs.

Opportunistic coding across on‐route dominating nodes in a flow‐oriented SDN enabled WSN

“…Furthermore, the controller exploits coding opportunities at dominant nodes to reduce transmission counts during communication in the network. Repeated packet encoding during transmissions through sensory nodes reduces packet delay which is demonstrated by Szab et al 24 In the literature, various applications of SDN‐enabled WSN are deployed in a range of environments and confirmed the improvement in different evaluation metrics 25–29 . Network coding is susceptible to security issues, even though opportunistic coding with SDN architecture is better suitable for futuristic networks, such as 5G 30,31 .…”

“…Repeated packet encoding during transmissions through sensory nodes reduces packet delay which is demonstrated by Szab et al 24 In the literature, various applications of SDN-enabled WSN are deployed in a range of environments and confirmed the improvement in different evaluation metrics. [25][26][27][28][29] Network coding is susceptible to security issues, even though opportunistic coding with SDN architecture is better suitable for futuristic networks, such as 5G. 30,31 The usage of SDN somehow addresses the security issues in the candidate wireless ad hoc networks.…”