Software Defined Networking Based for Improved Wireless Sensor Network

Abstract

The expansion of Internet of Things (IoT), the promising technology for new intelligent applications, and its fundamental platform Wireless Sensor Networks (WSN), would require a flexible layered architecture to interconnect an increasing number of heterogeneous sensor nodes. The Software Defined Network (SDN) which is an emerging network paradigm that separates control logic from the network device; and brings flexibility and simplicity of network management; has proven extremely useful to cope with WSN defies and to improve its performance. The SDN-based WSN (SDWSNs) have been introduced to reorganize the WSN functionalities according to the SDN model. This paper highlights the importance of adopting SDN in WSN networks, presents the common SDWSN architecture, reviews several contributions on SDWSN architectures and functionalities, analyzes and compares them with focus on aims, architecture design and employed features to ensure improved WSN.