摘要
Caching popular contents at the base station (BS) can reduce the end-to-end delay of service and the cost of cellular networks. Yet it is unknown whether introducing cache to BS can improve the energy efficiency (EE) of downlink systems. With BS caching, energy consumption for backhauling can be reduced, but caches will also consume energy. In this paper, we analyze the EE of two kinds of networks with a macro BS or multiple non-coordinated pico BSs with caches, where the impact of content popularity and request arrival density are considered. Analytical and simulation results show that introducing cache can improve the EE if the file catalog size is not too large and placing the caches at the pico BSs is more energy efficient.
| 源语言 | 英语 |
|---|---|
| 主期刊名 | 2014 IEEE Global Conference on Signal and Information Processing, GlobalSIP 2014 |
| 出版商 | Institute of Electrical and Electronics Engineers Inc. |
| 页 | 173-177 |
| 页数 | 5 |
| ISBN(电子版) | 9781479970889 |
| DOI | |
| 出版状态 | 已出版 - 5 2月 2014 |
| 活动 | 2014 IEEE Global Conference on Signal and Information Processing, GlobalSIP 2014 - Atlanta, 美国 期限: 3 12月 2014 → 5 12月 2014 |
出版系列
| 姓名 | 2014 IEEE Global Conference on Signal and Information Processing, GlobalSIP 2014 |
|---|
会议
| 会议 | 2014 IEEE Global Conference on Signal and Information Processing, GlobalSIP 2014 |
|---|---|
| 国家/地区 | 美国 |
| 市 | Atlanta |
| 时期 | 3/12/14 → 5/12/14 |
联合国可持续发展目标
此成果有助于实现下列可持续发展目标:
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可持续发展目标 7 经济适用的清洁能源
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