SD-6LN: Improved Existing IoT Framework by Incorporating SDN Approach

The state-of-the-art smart communication system like the Internet of things (IoT) suffers from various limitations like availability, reliability, scalability, interoperability, security, and privacy. Software-defined network (SDN) is an approach that has got many advantages that can solve some of the IoT challenges. IoT and SDN are two categories of networking system, but if they can be merged, then many IoT challenges will be resolved. Practically, it is not possible to discard the existing IoT infrastructure to replace it with any new system. In this paper, the initiative has been undertaken to incorporate the SDN feature in the existing 6LoWPAN-based IoT infrastructure. A new SDN-based 6LoWPAN-IoT infrastructure, namely SD-6LN, has been developed. This has enhanced the availability, reliability, and scalability of resource-constraint networks. The experimental results indicated satisfactory results with respect to round trip time, jitter, and packet drop in this network.

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