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| Energy-efficiency Aware Probabilistic Caching Scheme for Content-centric Networks |
| LUO Xi①③ AN Ying② WANG Jianxin① LIU Yao④ |
①(School of Information Science and Engineering, Central South University, Changsha 410083, China)
②(Institute of Information Security & Big Data, Central South University, Changsha 410083, China)
③(Department of Information Technology, Hunan Police Academy, Changsha 410138, China)
④(School of Computer and Information Engineering, Hunan University of Commerce, Changsha 410205, China) |
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Abstract In-network caching is one of the key technologies of Content-Centric Networking (CCN), which is widely concerned recently. However, most existing works are targeted for optimizing network resource utilization, and the energy consumption aspect is largely ignored. In this paper, first an energy consumption model for content distribution is built and a judging condition for energy efficiency optimization in caching is designed. On this basis and in combination with content popularity and node centrality, an Energy-Efficiency Aware Probabilistic Caching (E2APC) scheme is proposed. Simulation results show that the proposed scheme can effectively reduce the whole energy consumption, while guaranteeing comparatively high cache hit rate and few average response hops.
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Received: 05 November 2015
Published: 25 May 2016
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| Fund: The National Natural Science Foundation of China (61402541, 61103204), The Scientific Research Fund of Hunan Provincial Education Department (15B127) |
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Corresponding Authors:
AN Ying
E-mail: anying@csu.edu.cn
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