Fog computing is an emerging technology in the field of network services where data transfer from one device to another to perform some kind of activity. Fog computing is an extended concept of cloud computing. It works in-between the Internet of Things (IoT) and cloud data centers and reduces the communication gaps. Fog computing has made possible to have decreased latency and low network congestion. Fog computing is an on-going research trend in which the possibility of efficient network services exist. Fog computing can be described as a cloud type platform having similar services of data computation, data storage and application service but it is fundamentally different as it decentralized. In this paper, we have done a comprehensive survey on fog computing& IoT and described the fog computing architecture and analyze its different benefits and applications. We have also analyzed the security aspects of fog computing & IoT, which is necessary and an important part of any kind of technology used in data communication system.

翻译：雾计算是网络服务领域中的一项新兴技术，它能实现设备间的数据传输以执行各类活动。雾计算是云计算概念的延伸，其运作于物联网与云数据中心之间，从而弥补了通信间隙。雾计算使得低延迟和低网络拥塞成为可能，目前是存在高效网络服务可能性的持续研究趋势。雾计算可被描述为一种云类型平台，具备数据计算、数据存储及应用服务等相似功能，但其本质区别在于去中心化。本文对雾计算与物联网进行了全面综述，阐述了雾计算架构，并分析了其不同优势与应用。我们还分析了雾计算与物联网的安全性问题，这在数据通信系统中任何类型技术的研究中都是必要且重要的组成部分。