Content Caching and Clock Synchronization Assisted Low-Latency Communication in 5G Networks

Abstract

The 5G era currently dawned upon the world has broadened the scope significantly from the previous generations by creating a space for multitude of advanced technologies integration and seamless delivery of many wireless services from many different domains. Two of the key areas that already started to have a huge impact by capabilities of 5G are cloud computing and Internet of Things (IoT). A fully-fledged 5G environment will also leverage cloud resource access to cater the promising low-latency, high reliability and network efficiency. There are various challenges to fully utilize the 5G architecture to cater the unprecedented amount of applications with the effective integration of cloud. Numerous researches have conducted studies with focus on different aspects of cloud for exploring what solutions would suite the best. The low latency requirement of 5G has been a major challenge to fulfill and several researches have proposed a wide variety of state-of-the-art solutions that could immensely contribute to overcoming this challenge. Content caching in cloud and clock synchronization are two of the hot topics among many researches and we believe solutions incorporated by these can revolutionize the way 5G environments are built that can easily meet the IoT demands. This paper will conduct a comprehensive review on 7 best research papers that have specifically focused on content caching and clock synchronization to meet the stringent low-latency requirement of 5G networks. This review presents set of state-of-the-art research solutions with content caching and clock synchronization approaches that are available to build a more coherent and resilient 5G architecture design to meet the low-latency constraints very effectively for IoT devices and smart applications.