Document Type

Journal Article

Publication Title

IEEE Access

Volume

8

First Page

212709

Last Page

212737

Publisher

IEEE

School

School of Engineering

RAS ID

32723

Funders

Edith Cowan University - Open Access Support Scheme 2020

Comments

Zahed, M. I. A., Ahmad, I., Habibi, D., Phung, Q. V., Mowla, M. M., & Waqas, M. (2020). A review on green caching strategies for next generation communication networks. IEEE Access, 8, 212709-212737. https://doi.org/10.1109/ACCESS.2020.3040958

Abstract

© 2020 IEEE. In recent years, the ever-increasing demand for networking resources and energy, fueled by the unprecedented upsurge in Internet traffic, has been a cause for concern for many service providers. Content caching, which serves user requests locally, is deemed to be an enabling technology in addressing the challenges offered by the phenomenal growth in Internet traffic. Conventionally, content caching is considered as a viable solution to alleviate the backhaul pressure. However, recently, many studies have reported energy cost reductions contributed by content caching in cache-equipped networks. The hypothesis is that caching shortens content delivery distance and eventually achieves significant reduction in transmission energy consumption. This has motivated us to conduct this study and in this article, a comprehensive survey of the state-of-the-art green caching techniques is provided. This review paper extensively discusses contributions of the existing studies on green caching. In addition, the study explores different cache-equipped network types, solution methods, and application scenarios. We categorically present that the optimal selection of the caching nodes, smart resource management, popular content selection, and renewable energy integration can substantially improve energy efficiency of the cache-equipped systems. In addition, based on the comprehensive analysis, we also highlight some potential research ideas relevant to green content caching.

DOI

10.1109/ACCESS.2020.3040958

Creative Commons License

Creative Commons Attribution 4.0 License
This work is licensed under a Creative Commons Attribution 4.0 License.

Research Themes

Natural and Built Environments

Priority Areas

Engineering, technology and nanotechnology

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