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arXiv 1604.08552cs.NI
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密集蜂窝网络中的切换管理:一种随机几何方法

Handover Management in Dense Cellular Networks: A Stochastic Geometry Approach

Rabe Arshad, Hesham ElSawy, Sameh Sorour, Tareq Y. Al-Naffouri, Mohamed-Slim Alouini

摘要:

蜂窝运营商不断地使其网络致密化以应对不断增加的容量需求。此外,预计蜂窝网络的极端密集化阶段将满足雄心勃勃的第五代(5G)性能要求。网络致密化通过缩小基站(BS)的覆盖区并在空间域上更频繁地重用相同频谱来提高频谱利用率和网络容量。然而,网络密集化也增加了切换(HO)速率,这可能由于HO延迟而减少移动用户的容量增益。在高度密集的5G蜂窝网络中,HO延迟可能会抵消甚至抵消网络密集化带来的收益。在本文中,我们提出了一个分析范式,随机几何的基础上,量化的HO延迟对蜂窝网络中的平均用户速率的影响。为此,我们提出了一个灵活的切换方案,以减少HO延迟的情况下,高度密集的蜂窝网络。该方案允许跳过HO过程,其中一些BS沿着用户的轨迹。该方案仅针对单次HO跳过的性能评估和测试在许多实际场景中显示出相当大的增益。

英文摘要:

Cellular operators are continuously densifying their networks to cope with the ever-increasing capacity demand. Furthermore, an extreme densification phase for cellular networks is foreseen to fulfill the ambitious fifth generation (5G) performance requirements. Network densification improves spectrum utilization and network capacity by shrinking base stations' (BSs) footprints and reusing the same spectrum more frequently over the spatial domain. However, network densification also increases the handover (HO) rate, which may diminish the capacity gains for mobile users due to HO delays. In highly dense 5G cellular networks, HO delays may neutralize or even negate the gains offered by network densification. In this paper, we present an analytical paradigm, based on stochastic geometry, to quantify the effect of HO delay on the average user rate in cellular networks. To this end, we propose a flexible handover scheme to reduce HO delay in case of highly dense cellular networks. This scheme allows skipping the HO procedure with some BSs along users' trajectories. The performance evaluation and testing of this scheme for only single HO skipping shows considerable gains in many practical scenarios.

机构、总结、中文摘要均由AI分析而来,可能存在错误,请以论文正文为准。

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