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An interference coordination method based on geometric mean of user throughput for heterogeneous networks

机译:基于用户吞吐率几何平均值的异构网络干扰协调方法

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摘要

This paper proposes an inter-cell interference coordination (ICIC)-parameter-adjustment method for wireless heterogeneous cellular networks (HetNet), in which low-power nodes (such as pico base stations (BSs)) are overlaid with conventional high-power macro BS deployment. The fractional radio resource reuse (resource partitioning) scheme adopted for HetNet promises to mitigate interference from high-power BSs to low-power nodes. However, the ratio of protected resources that maximizes the system throughput may depend on the distribution of users or BSs. Thus, this ratio cannot be determined in advance. In this study, we consider both cell association and optimization of the resource-partitioning parameter in HetNet. The proposed resource-partitioning parameter-adjustment method alleviates the above mentioned problem, and improves network performance in terms of the geometric mean of user throughputs. The strong performance of the proposed method is verified by system level simulations of various cell distributions. The proposed method does not require manual adjustment of the resource-partitioning parameter.
机译:本文提出了一种用于无线异构蜂窝网络(HetNet)的小区间干扰协调(ICIC)参数调整方法,该方法中,低功率节点(如微微基站(BS))被传统的高功率宏覆盖BS部署。 HetNet采用的分数无线资源重用(资源划分)方案有望减轻从高功率BS到低功率节点的干扰。但是,使系统吞吐量最大化的受保护资源的比例可能取决于用户或BS的分布。因此,无法预先确定该比率。在这项研究中,我们同时考虑了单元关联和HetNet中资源分配参数的优化。提出的资源分配参数调整方法减轻了上述问题,并且就用户吞吐量的几何平均值而言提高了网络性能。通过各种小区分布的系统级仿真,验证了该方法的强大性能。提出的方法不需要手动调整资源分配参数。

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