Print Email Facebook Twitter Know when to listen Title Know when to listen: SDN-based protocols for directed IoT networks Author Alves, R.C.A. (Universidade de Sao Paulo) Borges Margi, Cintia (Universidade de Sao Paulo) Kuipers, F.A. (TU Delft Embedded and Networked Systems) Date 2020 Abstract Low-power wireless networks are an integral part of the Internet of Things, composed of resource-constrained devices harvesting ambient information.The appearance of unidirectional links is characteristic of low power wireless networking due to physical effects, device heterogeneity and manufacturing imperfections.Despite the prevalence of unidirectional links, most routing and radio duty cycling protocols designed for these networks do not account for such links.We provide unidirectional-link-capable protocols and study the impact of using such links on network performance indicators, such as the data delivery ratio, delay and energy consumption.Our protocols are flexible and flooding-free, leveraging centralized knowledge provided by the Software-Defined Networking paradigm.Our experiments reveal that, while unidirectional links must be detected, using them for routing enhances network performance only if the unidirectional links are long. Subject Radio duty cyclingSoftware-Defined NetworkingUnidirectional linksWireless Sensor Networks To reference this document use: http://resolver.tudelft.nl/uuid:e86b1abc-8867-4602-91e0-b0b06b84b185 DOI https://doi.org/10.1016/j.comcom.2019.12.023 Embargo date 2020-06-22 ISSN 0140-3664 Source Computer Communications, 150, 672-686 Part of collection Institutional Repository Document type journal article Rights © 2020 R.C.A. Alves, Cintia Borges Margi, F.A. Kuipers Files PDF ComCom2019.pdf 1.28 MB Close viewer /islandora/object/uuid:e86b1abc-8867-4602-91e0-b0b06b84b185/datastream/OBJ/view