arXivDaily arXiv每日学术速递 周一至周五更新
arXiv周末暂无论文更新,休息一下吧,周末愉快~~
arXiv 1807.02565cs.NIcs.ITmath.IT
收藏

三维超密集异构网络中的切换速率表征

Handover Rate Characterization in 3D Ultra-Dense Heterogeneous Networks

Rabe Arshad, Hesham ElSawy, Lutz Lampe, Md. Jahangir Hossain

摘要:

超密集网络(UDN)设想大规模部署异构基站(BS),以满足所需的业务需求。此外,期望UDN支持不同的设备,例如,个人移动设备和无人驾驶飞行器。然而,在这种高度密集的网络中,用户移动性和由此产生的用户到BS关联的过度变化可能使通过BS密集化预见的容量增益无效。因此,需要量化UDN中用户移动性的影响。在这篇文章中,我们考虑了一个三维的N层下行链路网络,并确定关联概率和层间/层内切换率使用随机几何工具。特别是,我们将用户和基站的天线高度的数学分析和研究用户高度的关联和切换速率的影响。数值趋势表明,层内重叠是占主导地位的层与最短的相对高程w.r.t.当层的高度之间存在高度差异时,用户和这种优势更加突出。然而,可以采用偏置来平衡网络层之间的切换负载。

英文摘要:

Ultra-dense networks (UDNs) envision the massive deployment of heterogenous base stations (BSs) to meet the desired traffic demands. Furthermore, UDNs are expected to support the diverse devices e.g., personal mobile devices and unmanned ariel vehicles. User mobility and the resulting excessive changes in user to BS associations in such highly dense networks may however nullify the capacity gains foreseen through BS densification. Thus there exists a need to quantify the effect of user mobility in UDNs. In this article, we consider a three-dimensional N-tier downlink network and determine the association probabilities and inter/intra tier handover rates using tools from stochastic geometry. In particular, we incorporate user and BSs' antenna heights into the mathematical analysis and study the impact of user height on the association and handover rate. The numerical trends show that the intra-tier handovers are dominant for the tiers with shortest relative elevation w.r.t. the user and this dominance is more prominent when there exists a high discrepancy among the tiers' heights. However, biasing can be employed to balance the handover load among the network tiers.

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。

↑