https://scholars.lib.ntu.edu.tw/handle/123456789/374094
標題: | On the Coverage Preservation Problem in Green Cellular Networks | 作者: | Cheng-Yi Chang Wanjiun Liao Da-Shan Hsu WANJIUN LIAO |
關鍵字: | green cellular network; network coverage problem; power-saving BS | 公開日期: | 十二月-2012 | 來源出版物: | IEEE GLOBECOM 2012 | 摘要: | Energy-efficient base station (BS) operation is a key design goal in green cellular networks. The most effective way for energy conservation of BSs is to switch on/off BS adaptively. However, such operations may induce the problem of creating coverage holes in the network. In this paper, we attempt to minimize the total power consumption of the network by switching on and off BSs adaptively while maintaining the network coverage. Specifically, we derive the optimal cell size and determine the optimal number of active BSs for power consumption minimization with network coverage preservation. We also propose a near-optimal polynomial-time heuristic algorithm for energy-efficient BS activation with network coverage preservation. The simulation results show that our algorithm can approach the performance upper bound with only approximately 3dB performance loss in overall network power consumption for a cellular network with various deployment strategies. © 2012 IEEE. |
URI: | http://scholars.lib.ntu.edu.tw/handle/123456789/374094 | DOI: | 10.1109/GLOCOM.2012.6503656 | SDG/關鍵字: | Cellular network; Deployment strategy; Green cellular networks; Network coverage; Overall networks; Power consumption minimizations; Power-saving; Total power consumption; Communication; Energy efficiency; Heuristic algorithms; Optimization |
顯示於: | 電機工程學系 |
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