https://scholars.lib.ntu.edu.tw/handle/123456789/381498
標題: | Genie: An Optimal Green Policy for Energy Saving and Traffic Offloading in Heterogeneous Cellular Networks | 作者: | Yi-Han Chiang Wanjiun Liao WANJIUN LIAO |
關鍵字: | energy saving; Heterogeneous cellular networks; monotone hysteresis; traffic offloading | 公開日期: | 六月-2013 | 起(迄)頁: | 6230-6234 | 來源出版物: | IEEE ICC 2013 | 摘要: | To enhance the utilization of base stations (BSs) and face the challenge of the upcoming mobile data tsunami, energy saving and traffic offloading are two important issues to address in green cellular networks. In this paper, we design an optimal green policy, called Genie, to strike a balance between energy saving and traffic offloading in the heterogeneous cellular network, so that the system can either activate hotspot cells for traffic offloading or to deactivate the hotspot cells for energy saving. We prove that the optimal green policy is monotone hysteretic, and our system can thus be realized by simple switch-up and switch-down thresholds, while avoiding the ping-pong effect suffered by existing works. We show via simulations that our optimal green policy can significantly reduce total energy cost and perform energy saving and traffic offloading intelligently under all traffic conditions. © 2013 IEEE. |
URI: | http://scholars.lib.ntu.edu.tw/handle/123456789/381498 | DOI: | 10.1109/ICC.2013.6655604 | SDG/關鍵字: | Hysteresis; Optimization; Testbeds; Green cellular networks; Heterogeneous cellular networks; Hot-spot cells; Mobile data; Ping-pong effect; Total energy; Traffic conditions; Energy conservation |
顯示於: | 電機工程學系 |
在 IR 系統中的文件,除了特別指名其著作權條款之外,均受到著作權保護,並且保留所有的權利。