Area spectral efficiency for cellular networks with small reuse distance: An algebraic approach

Hsin-An Hou, Li-Chun Wang
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引用次数: 2

Abstract

In this paper we present an algebraic analytical approach to estimate area spectrum efficiency (ASE) of interference-limited cellular mobile systems with small reuse distance ratio. In an ultra-dense network (UDN), the co-channel inter-site distance is very small (e.g. 2 times of cell radius). However, to the best of our knowledge, an accurate performance framework for cellular mobile network with small number of co-channel inter-site distance ratio is rarely seen in the literature. To improve the accuracy of expression, we take interference signals from the all interfering BSs on two-dimension and area spectral efficiency (ASE) into account, and derive the close-form expression for the downlink signal-to-interference plus noise ratio (SINR) by Newton's generalized binomial equation and triangle identities of a base station (BS) geometry model. Based on the SINR expression, we further derive tight approximation formulas of downlink spectral efficiency (SE)s and ASE. Moreover, the SINR close-form expression and the tight approximation for SE and ASE with small reuse distance ratio are also presented and validated.
小复用距离蜂窝网络的区域频谱效率:一种代数方法
本文提出了一种估算小复用距离比干扰受限蜂窝移动系统面积频谱效率的代数解析方法。在超密集网络(UDN)中,同信道站点间距离非常小(例如2倍小区半径)。然而,据我们所知,在文献中很少看到具有少量共信道站点间距离比的蜂窝移动网络的准确性能框架。为了提高表达式的精度,考虑了所有干扰基站的二维和面积频谱效率(ASE),利用基站几何模型的牛顿广义二项式方程和三角恒等式推导了下行信噪比(SINR)的近似表达式。基于SINR表达式,我们进一步推导了下行频谱效率(SE)s和ASE的紧密近似公式。此外,还提出并验证了小重用距离比条件下的SE和ASE的SINR闭合表达式和紧密近似。
本文章由计算机程序翻译,如有差异,请以英文原文为准。
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