Improvement of IoT environment using SDN

Abstract

The Internet of Things where everything is connected to the Internet is becoming a reality. The number of devices connected to the Internet is expected to reach 27 billion by 2025, up from 6 billion in 2015. [55]. As a result, the Internet of Things market is expected to quadruple globally by 2020, especially in Korea. [56]. This increase in the Internet of Things causes a variety of problems. First of all, from the perspective of users of object internet, access becomes less accessible due to increased transmission rate and latency. From the network administrator's perspective, increased costs to ensure power consumption and service quality lead to reduced profits. Still, the increase in the Internet of Things to provide more information and convenience is unavoidable, so efforts are needed to solve the problems facing them. In this paper, we try to solve these problems by approaching them from two perspectives: First, optimizing the Internet of Things at the Access Point maximizes user satisfaction and network administrator benefits. More and more APs are being set up to support the growing Internet of Things, but interventions between APs will rather degrade performance. The increase in APs will also result in an increase in power consumption. By optimizing these AP networks, we want to optimize the transmission rate and power consumption of users. Second, the wireless mesh network optimizes the information transfer path to secure stability. To do this, analyze the packets coming into the network and add results to guide the optimal route and help optimize the network.