A Review on Edge Analytics: Issues, Challenges, Opportunities, Promises, Future Directions, and Applications

TL;DR

This review paper discusses the concepts, challenges, and applications of Edge analytics, emphasizing its role in processing data locally on Edge devices amidst resource constraints and exploring future research directions.

Contribution

It provides a comprehensive overview of Edge analytics, clarifies its distinction from Edge computing and devices, and reviews current research, challenges, and applications across various sectors.

Findings

Edge analytics faces resource constraints limiting advanced algorithm execution.

Current research explores solutions for efficient Edge analytics implementation.

Edge analytics has promising applications in healthcare, agriculture, and industry.

Abstract

Edge technology aims to bring Cloud resources (specifically, the compute, storage, and network) to the closed proximity of the Edge devices, i.e., smart devices where the data are produced and consumed. Embedding computing and application in Edge devices lead to emerging of two new concepts in Edge technology, namely, Edge computing and Edge analytics. Edge analytics uses some techniques or algorithms to analyze the data generated by the Edge devices. With the emerging of Edge analytics, the Edge devices have become a complete set. Currently, Edge analytics is unable to provide full support for the execution of the analytic techniques. The Edge devices cannot execute advanced and sophisticated analytic algorithms following various constraints such as limited power supply, small memory size, limited resources, etc. This article aims to provide a detailed discussion on Edge analytics. A clear explanation to distinguish between the three concepts of Edge technology, namely, Edge devices, Edge computing, and Edge analytics, along with their issues. Furthermore, the article discusses the implementation of Edge analytics to solve many problems in various areas such as retail, agriculture, industry, and healthcare. In addition, the research papers of the state-of-the-art edge analytics are rigorously reviewed in this article to explore the existing issues, emerging challenges, research opportunities and their directions, and applications.