Cost Efficiency in Coordinated Multiple-Point System Based on Multi-Source Power Supply

被引:8
作者
Han, Dongsheng [1 ]
Zheng, Bing [1 ,2 ]
Chen, Zhixiong [1 ]
Li, Shijie [1 ]
机构
[1] North China Elect Power Univ, Dept Elect & Elect Engn, Baoding 071003, Peoples R China
[2] China Mobile Commun Corp Hebei Prov, Dept Network, Baoding Branch, Baoding 071000, Peoples R China
基金
中国国家自然科学基金;
关键词
5G mobile communication; energy saving; green network; sleep mechanism; CELLULAR NETWORKS; ENERGY-EFFICIENCY;
D O I
10.1109/ACCESS.2018.2880706
中图分类号
TP [自动化技术、计算机技术];
学科分类号
080201 [机械制造及其自动化];
摘要
The rapid increase in the number of mobile communication users and business transformation are continuously increasing the market demand. High data traffic, low power consumption, high network efficiency, and good user experience are the core of 5G mobile networks in the future. Wireless systems have experienced a sharp increase in power consumption with the growth of high-speed data service. Mobile network operators currently face much heavier economic burden than before due to unprecedented increases in the number of mobile users and base stations. To address these challenges, a peak-valley time-of-use tariff strategy and renewable energy are adopted in wireless systems. In this situation, the relation between power consumption and energy cost becomes non-linear. To describe the cost energy for data transmission, we propose a new concept, namely, cost efficiency (CE), which considers more factors than traditional energy efficiency (EE). We prove that the CE function is strictly quasi-concave and features a unique global optimum in a coordinated multiple-point system based on multi-source power consumption. A water-filling algorithm is also adopted to allocate power on the basis of base sleep mechanism. Then, we compare the system performances under EE and CE.
引用
收藏
页码:71994 / 72001
页数:8
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