arXivDaily arXiv每日学术速递 周一至周五更新
arXiv 1604.04166cs.ITmath.IT
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非Poisson网络中的干扰相关性分析

Analysis of Interference Correlation in Non-Poisson Networks

Juan Wen, Min Sheng, Kaibin Huang, Jiandong Li

摘要:

在泊松网络中,干扰的相关性已经被很好地量化,其中干扰者彼此独立。然而,在无线网络中,基站(BS)之间存在依赖性。有鉴于此,我们量化的干扰相关性在非泊松网络中的干扰分布作为一个Matern集群过程(MCP)和二阶集群过程(SOCP)。有趣的是,研究发现Matern集群网络的干扰相关系数$ζ_{MCP}$等于二阶集群网络的干扰相关系数$ζ_{SOCP}$。此外,它们大于泊松网络的对应值。这表明在干扰者中的聚类增强了干扰相关性。此外,我们表明,相关系数$ζ_{MCP}$和$ζ_{SOCP}$增加的平均点数,在每个集群,$c$,增长,但减少的集群半径,$R$的增加。更重要的是,我们指出,干扰相关的聚类的影响可以忽略不计的$\frac{c}{π^{2}R^{2}}\rightarrow0$。最后,通过仿真验证了分析结果。

英文摘要:

The correlation of interference has been well quantified in Poisson networks where the interferers are independent of each other. However, there exists dependence among the base stations (BSs) in wireless networks. In view of this, we quantify the interference correlation in non-Poisson networks where the interferers are distributed as a Matern cluster process (MCP) and a second-order cluster process (SOCP). Interestingly, it is found that the correlation coefficient of interference for the Matern cluster networks, $ζ_{MCP}$, is equal to that for second-order cluster networks, $ζ_{SOCP}$. Furthermore, they are greater than their counterpart for the Poisson networks. This shows that clustering in interferers enhances the interference correlation. In addition, we show that the correlation coefficients $ζ_{MCP}$ and $ζ_{SOCP}$ increase as the average number of points in each cluster, $c$, grows, but decrease with the increase in the cluster radius, $R$. More importantly, we point that the effects of clustering on interference correlation can be neglected as $\frac{c}{π^{2}R^{2}}\rightarrow0$. Finally, the analytical results are validated by simulations.

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