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Wireless Communications and Mobile Computing
Volume 2017 (2017), Article ID 6579467, 9 pages
https://doi.org/10.1155/2017/6579467
Research Article

Energy Efficiency Analysis of ICN Assisted 5G IoT System

1State Key Laboratory of Alternate Electrical Power System with Renewable Energy Sources, School of Electrical and Electronic Engineering, North China Electric Power University, Beijing 102206, China
2Information System Laboratory, Department of Electrical and Computer Engineering, Seoul National University, Seoul 151-744, Republic of Korea
3School of Information Engineering, Zhengzhou University, Zhengzhou 450001, China
4Instituto de Telecomunicações, 1049-001 Aveiro, Portugal

Correspondence should be addressed to Zhenyu Zhou; nc.ude.upecn@uohz_uynehz

Received 26 August 2017; Accepted 5 December 2017; Published 26 December 2017

Academic Editor: Jun Huang

Copyright © 2017 Di Zhang et al. This is an open access article distributed under the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.

Abstract

Other than separately investing the energy efficiency (EE) merits of information-centric networking’s (ICN’s) caching and sharing (CS) mechanism in wireless communications, here we comprehensively compare the EE performances of ICN’s CS mechanism in different scenarios. A modified system model is first proposed while introducing the CS mechanism into the in-network router, base station (BS), and neighboring user sides. Afterwards, the system achievable sum rate as well as the power consumptions in wireless and wired sections is investigated. The EE performances of different scenarios are finally obtained by dividing the achievable sum rate by the consumed power. While comparing the three scenarios, numerical results demonstrate that the optimal place to cache the content is mainly determined by the distance and hub number of the core routers that passed.