Edge computing vs centralized cloud: Impact of communication latency on the energy consumption of LTE terminal nodes

被引：20

作者：

Caiazza, Chiara ^{[1
,2
]}

Giordano, Silvia ^{[3
]}

Luconi, Valerio ^{[4
]}

Vecchio, Alessio ^{[1
]}

机构：

[1] Univ Pisa, Dip Ing Informaz, Largo L Lazzarino 1, I-56122 Pisa, Italy

[2] Univ Florence, Florence, Italy

[3] Polo Univ Lugano Campus Est, Dip Tecnol Innovat, SUPSI, Via St 1, CH-6962 Lugano, Switzerland

[4] CNR, Ist Informat & Telematica, Via G Moruzzi 1, I-56124 Pisa, Italy

来源：

COMPUTER COMMUNICATIONS | 2022年 / 194卷

关键词：

Edge computing; Energy saving; IoT communication;

D O I：

10.1016/j.comcom.2022.07.026

中图分类号：

TP [自动化技术、计算机技术];

学科分类号：

0812 ;

摘要：

Edge computing brings several advantages, such as reduced latency, increased bandwidth, and improved locality of traffic. One aspect that is not sufficiently understood is to what extent the different communication latency experienced in the edge-cloud continuum impacts on the energy consumption of clients. We studied the energy consumption of a request-response communication scheme when an LTE node communicates with edge-based or cloud-based servers. Results show that the reduced latency of edge servers bring significant benefits in terms of energy consumption. Experiments also show how the energy savings brought by edge computing are influenced by the prevalent direction of data transfer (upload vs download), load of the server, and daytime/nighttime operation.

引用

页码：213 / 225

页数：13

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