Edge Caching for Mobile Devices

The volume of the network traffic is increasing exponentially. Several smart devices and mobile applications are being widely used, thus placing a heavy pressure on backhaul lines and mobile core networks. For the next-generation portable systems, mobile edge caching is a promising technology with cloud storage capabilities and service environment at the networks edge. Lower latency and faster bandwidth connections are what 5G technology promises. In addition to numerous distant top-level servers that store content, mobile edge caching is able to store popular content or content fragments on certain edge servers close to the end clients. In this paper, we provide a thorough review of mobile edge caching and caching advantages. We also examine several caching standards and how they affect the effectiveness of caching, such as caching prevalent content at edge hubs like base stations which may be a basic arrangement for improving consumers' quality of services. Choosing which content ought to be kept within the base station cache and accurately predicting which content will be popular in the future are both highly difficult tasks. In order to better explain the necessity of improving quality of experience (QoE) in the existing network architecture, we briefly discuss existing work on edge caching and compare quality of service (QoS) and QoE. We describe the caching process in detail along with the open issues and research challenges which will facilitate the research community specifically in the area of edge caching.