Software defined networks and the Internet of Things (IoT) are two major and emerging developments in networking that have much in common and their survival depends on each other. Software Defined Networking (SDN) is one of the 5G enabling innovations that can help design complex, manageable, cost-effective and adaptable networks. On the other hand, Edge Computing (EC) will do automatic analytical computing on data from sensors, network switches, or other devices instead of waiting for data to be returned to a centralized data store. The IoT also requires a decentralized Internet, as the demand for real-time data analysis is growing and centralized processing systems are being overrun. So, it is necessary to provide a solution to encompass the advantages of EC, IoT and SDN simultaneously, as an integrated platform. In this research, after presenting a brief explanation about the key points of the SDN, IoT, EC and related concepts, and recent articles in this regard are investigated. This systematic literature review (SLR) study focuses on different frameworks and platforms that meet the mentioned requirements by considering the advantages of integrating EC, SDN, and IoT technologies. This platform provides centralized management of heterogeneous devices and architectures and supports the problem of resource limitations in IoT. The short output of this literature contains the following: (1) presenting a summary of review studies and research articles in this area which have been published from 2013 till 2021; (2) providing some key technical questions; (3) presenting some different technical classifications to categorizing the characteristics and features of EC and SDN in IoT; (4) discussing the key challenges; (5) Presenting future directions for research and open issues.

软件定义网络和物联网 (IoT) 是网络领域的两大新兴发展，它们有很多共同点，它们的生存相互依赖。软件定义网络 (SDN) 是支持 5G 的创新之一，可以帮助设计复杂、可管理、具有成本效益且适应性强的网络。另一方面，边缘计算 (EC) 将对来自传感器、网络交换机或其他设备的数据进行自动分析计算，而不是等待数据返回到集中式数据存储。物联网还需要分散的互联网，因为对实时数据分析的需求不断增长，集中处理系统正在超负荷运转。因此，有必要提供一个同时包含EC、IoT和SDN优势的解决方案，作为一个集成平台。在这项研究中，在对SDN、IoT、EC的关键点及相关概念进行了简要说明后，对这方面的近期文章进行了调查。本系统文献综述 (SLR) 研究通过考虑集成 EC、SDN 和 IoT 技术的优势，重点关注满足上述要求的不同框架和平台。该平台提供异构设备和架构的集中管理，并支持物联网资源受限的问题。该文献的简短输出包含以下内容：（1）总结了 2013 年至 2021 年在该领域发表的评论研究和研究文章；（2）提供一些关键技术问题；(3) 提出了一些不同的技术分类，对物联网中EC和SDN的特点和特点进行分类；(4) 讨论主要挑战；(5) 提出未来的研究方向和开放性问题。