Dual-Battery Enabled Profit Driven User Association in Green Heterogeneous Cellular Networks
Dual-Battery Enabled Profit Driven User Association in Green Heterogeneous Cellular Networks
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DOI：
10.1109/tgcn.2018.2869039
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发表时间：
2018-09
影响因子：
4.8
通讯作者：
Xilong Liu;N. Ansari
中科院分区：
文献类型：
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作者：
Xilong Liu;N. Ansari
随着人们认识到对环境和气候变化的潜在有害影响，信息和通信技术（ICT）的并网棕能消耗引起了广泛关注。蜂窝基站（BS）是ICT领域的主要能源消耗者之一，其对全球碳排放的贡献持续增加。利用绿色能源为基站供电以减少其上网棕色能源消耗至关重要。然而，为了最大程度地节约并网棕能，降低上网棕能电费，现有的绿色能源相关工作大多只追求绿色能源利用最大化，而牺牲了移动用户所获得的服务。事实上，对服务的不满最终可能导致网络提供商失去市场份额和利润。在本文中，我们提出了一种双电池启用的利润驱动的用户关联方案，通过共同考虑流量传输延迟和绿色能源利用，以最大化异构蜂窝网络中网络提供商的利润。由于这种利润驱动的用户关联优化问题是 NP 困难的，因此我们进一步提出了一些启发式方法来解决计算复杂度较低的问题。最后，通过大量的仿真验证了所提出算法的性能。
With awareness of the potential harmful effects to the environment and climate change, on-grid brown energy consumption of information and communications technology (ICT) has drawn much attention. Cellular base stations (BSs) are among the major energy guzzlers in ICT, and their contributions to the global carbon emissions increase sustainedly. It is essential to leverage green energy to power BSs to reduce their on-grid brown energy consumption. However, in order to furthest save on-grid brown energy and decrease the on-grid brown energy electricity expenses, most existing green energy related works only pursue to maximize the green energy utilization, while compromising the services received by the mobile users. In reality, dissatisfaction of services may eventually lead to loss of market shares and profits of the network providers. In this paper, we propose a dual-battery enabled profit driven user association scheme by jointly considering the traffic delivery latency and green energy utilization to maximize the profits for the network providers in heterogeneous cellular networks. Since this profit driven user association optimization problem is NP-hard, we further propose some heuristics to solve the problem with low computational complexity. Finally, the performance of the proposed algorithm has been validated through extensive simulations.