On Minimizing Energy Consumption in FiWi Enhanced LTE-A HetNets
On Minimizing Energy Consumption in FiWi Enhanced LTE-A HetNets
复制标题
FiWi 增强型 LTE-A HetNet 中的能耗最小化
DOI：
10.1109/tetc.2016.2598478
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发表时间：
2018-10
影响因子：
5.9
通讯作者：
Nei Kato
中科院分区：
文献类型：
--
作者：
Hongzhi Guo;Jiajia Liu;Zubair Fadlullah;Nei Kato
作为光纤网络和LTE-A异构网(HetNets)的融合，光纤-无线(FiWi)增强型LTE-A HetNets将在支持大规模移动数据传输方面发挥关键作用。为了提高网络的能量效率，我们应该让尽可能多的设备进入休眠状态，从而减少用户设备(UE)接入互联网的数量。相反，为了最大限度地提高UE连接，所有设备都应处于活动状态，这会导致非常高的能耗。显然，在能耗最小化和UE连接最大化之间存在权衡。然而，已有的工作大多集中在接入网节能方案的设计上，而考虑UE连接约束的工作却很少。为此，本文研究了UE连接约束下的能量消耗最小化问题，建立了一个约束优化问题，并给出了三种解决方案，即蛮力算法、启发式贪婪算法和滚雪球算法。数值结果表明，启发式贪婪算法和滚雪球算法具有比蛮力算法更高的计算效率，并能在FiWi增强型LTE-A HetNet中获得满足UE连接约束的能耗最小问题的近似最优解。
As an integration of optical fiber networks and LTE-A heterogeneous networks (HetNets), fiber-wireless (FiWi) enhanced LTE-A HetNets will play a key role in supporting large-scale mobile data transmission. To improve the energy efficiency of the networks, we should put as much equipment into sleep state, and thus few user equipment (UE) can access Internet. In contrast, to maximize the UE connection all equipment should be in active state, which results in very high energy consumption. Obviously, there is a tradeoff between energy consumption minimization and UE connection maximization. However, existing works mostly focused on designing energy saving schemes for access networks but little can be found taking UE connection constraints into account. Toward this end, we provide this paper to explore the problem of minimizing energy consumption with UE connection constraints, where a constrained optimization problem is formulated and three solutions are presented, i.e., a brute force algorithm, a heuristic greedy algorithm, and a snowball rolling algorithm. Numerical results reveal that the heuristic greedy and snowball rolling algorithms have much higher computational efficiency than the brute force method, and can also achieve near-optimal solutions for the problem of minimizing energy consumption with UE connection constraints in FiWi enhanced LTE-A HetNets.
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影响因子：
4.7
作者：
Xin Liu;N. Ghazisaidi;L. Ivănescu;R. Kang;M. Maier
通讯作者：
Xin Liu;N. Ghazisaidi;L. Ivănescu;R. Kang;M. Maier
DOI：
10.1109/glocom.2014.7417047
发表时间：
2014-12
期刊：
2015 IEEE Global Communications Conference (GLOBECOM)
影响因子：
--
作者：
Sofiane Hamrioui;P. Lorenz
通讯作者：
Sofiane Hamrioui;P. Lorenz
影响因子：
6.7
作者：
通讯作者：
--
影响因子：
10.4
作者：
H. Beyranvand;W. Lim;M. Maier;C. Verikoukis;J. Salehi
通讯作者：
H. Beyranvand;W. Lim;M. Maier;C. Verikoukis;J. Salehi
DOI：
10.1364/jocn.4.000586
发表时间：
2012-08
期刊：
IEEE/OSA Journal of Optical Communications and Networking
影响因子：
--
作者：
G. Schütz;N. Correia
通讯作者：
G. Schütz;N. Correia