Modeling Energy-Delay Tradeoffs in Single Base Station with Cache

International Journal of Distributed Sensor Networks. 2015;11 DOI 10.1155/2015/401465

 

Journal Homepage

Journal Title: International Journal of Distributed Sensor Networks

ISSN: 1550-1329 (Print); 1550-1477 (Online)

Publisher: SAGE Publishing

LCC Subject Category: Science: Mathematics: Instruments and machines: Electronic computers. Computer science

Country of publisher: United States

Language of fulltext: English

Full-text formats available: PDF, HTML

 

AUTHORS


Chao Fang ( State Key Laboratory of Networking and Switching Technology, Beijing University of Posts and Telecommunications, No. 10 Xitucheng Road, Mail Box 199, Haidian District, Beijing 100876, China)

Haipeng Yao ( State Key Laboratory of Networking and Switching Technology, Beijing University of Posts and Telecommunications, No. 10 Xitucheng Road, Mail Box 199, Haidian District, Beijing 100876, China)

Chenglin Zhao ( Key Laboratory of Universal Wireless Communication, Beijing University of Posts and Telecommunications, Ministry of Education, No. 10 Xitucheng Road, Mail Box 199, Haidian District, Beijing 100876, China)

Yunjie Liu ( State Key Laboratory of Networking and Switching Technology, Beijing University of Posts and Telecommunications, No. 10 Xitucheng Road, Mail Box 199, Haidian District, Beijing 100876, China)

EDITORIAL INFORMATION

Blind peer review

Editorial Board

Instructions for authors

Time From Submission to Publication: 11 weeks

 

Abstract | Full Text

With the explosive increase of mobile data traffic, the energy efficiency issue in cellular networks is a growing concern. Recently, the advantages of in-network caching in Internet have been widely investigated, for example, speeding up content distribution and improving network resource utilization. In this paper, we analyze the energy-delay tradeoff problem in the context of single base station (BS), which has a cache capacity to buffer the contents through it. Although additional power is consumed by the cache, work load of BS and network delay will be improved, which makes a tradeoff between network power consumption and delay. Simulation results reveal that, by introducing the cache in a BS, the network power and delay can be obviously reduced in different network conditions compared to the scenario without a cache. In addition, we find that a large cache size does not always mean a less network cost because of the more cache power consumption.