An Internet of Things Traffic-Based Power Saving Scheme in Cloud-Radio Access Network
An Internet of Things Traffic-Based Power Saving Scheme in Cloud-Radio Access Network
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DOI：
10.1109/jiot.2018.2878884
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发表时间：
2019-04
影响因子：
10.6
通讯作者：
Keisuke Miyanabe;Tiago Gama Rodrigues;Yunseong Lee;Hiroki Nishiyama;N. Kato
中科院分区：
文献类型：
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作者：
Keisuke Miyanabe;Tiago Gama Rodrigues;Yunseong Lee;Hiroki Nishiyama;N. Kato
随着物联网（IoT）设备的激增，由网络需求引起的负载一直在增加。这在增加的网络请求方面具有直接后果，从而显著增加能耗。为此，本文重点研究了网络节能问题。在具有光纤无线的云无线接入网络中，我们提出了一种基于光线路终端（OLT）和光网络单元（ONU）的节能方法，光网络单元是负责设备之间数据传输的设备。我们所提出的方法是基于新的想法划分的睡眠阶段的ONU到时隙，这有利于同步和协调在整个系统中，从而提高资源效率和带来的功率经济性，不仅ONU，而且OLT和网络作为一个整体。这与现有文献相反，现有文献仅单独考虑ONU或OLT，而不关注系统内的合作。此外，我们提出的方法是考虑到物联网流量而创建的。它被设计为保证最大延迟，以便使其适用于移动的和实时物联网。最后，我们提出的方法允许网络操作，而无需外部电源的ONU通过使用电力光纤结合奥尔特。数学分析表明，我们提出的方法可以成功地降低系统的能量消耗。
With the proliferation of Internet of Things (IoT) devices, the load caused by network demands has been increasing. This has direct consequences in terms of increased network requests and thus significantly higher energy consumption. To this end, this paper focuses on network power saving. In a cloud-radio access network with fiber-wireless, we propose a power saving method based on the optical line terminals (OLTs) and optical network units (ONUs), the equipment responsible for data transmission to and from the devices. Our proposed method is based on the novel idea of dividing the sleep phase of the ONUs into time slots, which facilitates synchronization and coordination in the whole system, thus increasing resource efficiency and bringing power economy not only to the ONUs, but also to the OLTs and the network as a whole. This is in contrast to the existing literature, which considers only ONUs or OLTs separately, without focusing on the cooperation within the system. Additionally, our proposed method was created with IoT traffic in mind. and it was designed to guarantee a maximum delay in order to make it applicable to mobile and real-time IoT. Finally, our proposed method allows the network to operate without external power sources for the ONUs by using power over fiber in conjunction with the OLT. Mathematical analyses show that our proposed method can successfully decrease the system’s energy consumption.