An Internet of Things network (IoTN) is composed of many small devices or nodes located in homes and/or offices, to be operated through the Internet from anywhere, making these devices smarter and more efficient. For improving the efficiency of an IoTN, in this chapter an optimized fractal algorithm (OFA) was proposed for designing a centralized control topology of an IoTN, whose nodes are distributed according to the Hilbert space-filling fractal. We developed the OFA to find the best nodes where a smart home device can find the highly reliable link between its neighbors by a software-defined network (SDN) with a target coverage since OFA only considers reliable links among devices. Finally, through laboratory tests and computer simulations, we demonstrated the effectiveness of this proposal by using a large amount of IoT devices making them more efficient operating systems. The quality of service (QoS) is a challenge that guaranteed the level of service delivery to an IoTN, so that OFA takes less time to reach its destination after it is generated by its source, increasing the probability that the target node can recover the original packet before the lifetime expires.
Part of the book: Internet of Things (IoT) for Automated and Smart Applications