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Adaptive energy-efficient small cell sleeping and zooming in heterogeneous cellular networks
Telecommunication Systems ( IF 1.7 ) Pub Date : 2021-01-03 , DOI: 10.1007/s11235-020-00740-3
Sama Habibi , Vahid Solouk , Hashem Kalbkhani

With the rapid growth of the number of cellular network users and their tendency to share various multimedia files, providing better coverage for users and guaranteeing the quality of service (QoS) to serve them by base stations (BSs) are essential. On the other side, with the increase in the number of users and BSs, the power consumption augments in the cellular network. Heterogeneous network (HetNet), which consists of a large number of small cells deployed in the coverage of macrocell, can increase the network capacity. To fulfill the users’ demands and meanwhile reduce the power consumption, we present three energy-efficient adaptive sleeping, zooming, and zooming + sleeping schemes for ultra-dense HetNets to increase the minimum energy efficiency (EE) of small cell BSs (SBSs). In the proposed sleeping technique, the SBS with the minimum EE switches to sleep mode until the minimum EE is improved. The proposed zooming technique performs the user association and power control to maximize the EE of each SBS as well as utilize the lowest possible number of SBSs. Finally, SBSs with the minimum EE switches to sleep mode after applying the zooming technique. The proposed joint zooming and sleeping method reduces the total power consumption and SBS utilization ratio about 100% and 25%, respectively, compared to the static user association scheme, in which the users connect to the nearest SBS. Also, it enhances the SE and EE of static user association about 1.5 and 1.4, respectively, which indicate its efficiency.



中文翻译:

异构蜂窝网络中的自适应节能小蜂窝基站休眠和缩放

随着蜂窝网络用户数量的快速增长以及他们共享各种多媒体文件的趋势,为用户提供更好的覆盖范围以及保证基站(BS)为他们服务的服务质量(QoS)至关重要。另一方面,随着用户和BS数量的增加,蜂窝网络中的功耗增加。异构网络(HetNet)由宏小区覆盖范围内部署的大量小型小区组成,可以增加网络容量。为了满足用户的需求并同时降低功耗,我们提出了三种节能的超密集HetNet自适应睡眠,缩放和缩放+睡眠方案,以提高小型蜂窝基站(SBS)的最低能效(EE)。 。在建议的睡眠技术中,具有最低EE的SBS会切换到睡眠模式,直到提高最低EE。所提出的缩放技术执行用户关联和功率控制以最大化每个SBS的EE并利用尽可能少的SBS。最后,具有最小EE的SBS在应用缩放技术后会切换到睡眠模式。与静态用户关联方案(其中用户连接到最近的SBS)相比,所提出的联合缩放和休眠方法分别将总功耗和SBS利用率分别降低了约100%和25%。此外,它还将静态用户关联的SE和EE分别提高了约1.5和1.4,这表明其效率。所提出的缩放技术执行用户关联和功率控制以最大化每个SBS的EE并利用尽可能少的SBS。最后,具有最小EE的SBS在应用缩放技术后会切换到睡眠模式。与静态用户关联方案(其中用户连接到最近的SBS)相比,所提出的联合缩放和休眠方法分别将总功耗和SBS利用率分别降低了约100%和25%。此外,它还将静态用户关联的SE和EE分别提高了约1.5和1.4,这表明其效率。所提出的缩放技术执行用户关联和功率控制以最大化每个SBS的EE并利用尽可能少的SBS。最后,具有最小EE的SBS在应用缩放技术后会切换到睡眠模式。与静态用户关联方案(其中用户连接到最近的SBS)相比,所提出的联合缩放和休眠方法分别将总功耗和SBS利用率分别降低了约100%和25%。此外,它还将静态用户关联的SE和EE分别提高了约1.5和1.4,这表明其效率。与静态用户关联方案(其中用户连接到最近的SBS)相比,所提出的联合缩放和休眠方法分别将总功耗和SBS利用率分别降低了约100%和25%。此外,它还将静态用户关联的SE和EE分别提高了约1.5和1.4,这表明其效率。与静态用户关联方案(其中用户连接到最近的SBS)相比,所提出的联合缩放和休眠方法分别将总功耗和SBS利用率分别降低了约100%和25%。此外,它还将静态用户关联的SE和EE分别提高了约1.5和1.4,这表明其效率。

更新日期:2021-01-03
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