Interplay between cost, capacity and power consumption in heterogeneous mobile networks
Interplay between cost, capacity and power consumption in heterogeneous mobile networks
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异构移动网络中成本、容量和功耗之间的相互作用
DOI：
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发表时间：
2014
期刊：
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通讯作者：
C. Cavdar
中科院分区：
文献类型：
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作者：
Ashraf Awadelkarim Widaa Ahmed;J. Markendahl;C. Cavdar
移动的运营商如今倾向于通过响应于对覆盖和容量的增加的需求而添加更多的宏小区和小小区（例如，微小区、微微小区和毫微微小区）来在室外和室内环境中部署3G和4G网络的密集异构层。这种趋势背后的另一个主要驱动因素和使能因素是移动的通信网络中大约80%的功耗源于无线电基站的现象。这种情况使得移动的运营商选择使用低功率无线电基站来提供更好的覆盖、容量和环境友好的操作。在本文中的部署成本，有针对性的QoS和功耗之间的相互作用进行了研究，考虑两个部署选项的规定所需的移动的宽带覆盖和容量，即异构网络（HetNet）选项与同质宏小区部署选项。主要研究结果表明，在HetNet的情况下，将网络流量的百分比卸载到室内小型小区所导致的总拥有成本（TCO）的感知节省受到每个区域的移动的用户密度、其使用模式、所采用的回程解决方案和所使用的频谱资源的限制。通常，对于具有高需求水平的场景，特别是当需要更有效地使用频谱资源时，通过异构部署解决方案可以实现相当高的成本和功率节省。
Mobile operators nowadays tend to deploy dense heterogeneous layers of 3G and 4G networks in outdoor and indoor environments by adding more macrocells and small cells (e.g. microcells, picocells and femtocells) in response to the increasing demand for coverage and capacity. Another main driver and enabler behind this tendency is the phenomenon that around 80% of power consumption in mobile communication networks stems from the radio base stations. This situation makes mobile operators opt for the use of low-power radio base stations to provide better coverage, capacity and an environmentally-friendly operation. In this paper the interplay between the deployment costs, targeted QoS and power consumptions have been studied considering two deployment options for the provisioning of the required mobile broadband coverage and capacity; namely the heterogeneous network (HetNet) option versus the homogenous macrocell deployment option. The main findings indicate that, the perceived saving in the total cost of ownership (TCO) resulting from offloading percentage of network traffic to indoor smallcell, in the case of HetNet, is bounded by the mobile subscriber density per area, their usage patterns, the adopted backhaul solution and the used spectrum resources. In general, a quite paying cost and power saving can be achieved by the heterogonous deployment solution for scenarios with high demand levels especially when there is a need to use the spectrum resources more efficiently.