基于高斯混合模型的下行小区间干扰分布

严小军; 徐景; 朱元萍; 杨旸; 王江

doi:10.11999/JEIT151459

基于高斯混合模型的下行小区间干扰分布

doi: 10.11999/JEIT151459

基金项目:

国家自然科学基金(61571303)，国家科技部国际合作项目(2014DFE10160)，国家重大专项(2015ZX03002004)，上海市科委项目(15511103200)

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出版历程
- 收稿日期: 2015-12-24
- 修回日期: 2016-05-19
- 刊出日期: 2016-10-19

Distribution of Downlink Inter-cell Interference Based on Gaussian Mixture Model

Funds:

The National Natural Science Foundation of China (61571303), The International Science and Technology Cooperation Program of China (2014DFE10160), The National Science and Technology Major Project (2015ZX03002004), The Science and Technology Commission of Shanghai Municipality (15511103200)

摘要

摘要: 在正交频分多址接入(Orthogonal Frequency Division Multiple Access, OFDMA)蜂窝网络中，小区间干扰的统计特性与网络性能密切相关。下行小区间干扰的累积分布函数(Cumulative Distribution Function, CDF)还没有一个闭合表达式。该文提出一种参数可显式计算的高斯混合模型对下行小区间干扰分布进行近似。进一步，利用高斯混合模型将下行小区间干扰的累积分布函数近似表示为若干个误差函数的加权和。仿真验证了高斯混合模型的准确性，并且表明基于高斯混合模型的累积分布函数能很好地近似下行小区间干扰的累积分布函数。
- 无线通信 /
- 正交频分多址接入 /
- 小区间干扰 /
- 高斯混合模型 /
- 累积分布函数
Abstract: In Orthogonal Frequency Division Multiple Access (OFDMA)-based cellular networks, the statistical characteristics of the Inter-Cell Interference (ICI) are closely related to network performances. There is no closed-form expression for the Cumulative Distribution Function (CDF) of the ICI. The Gaussian Mixture Model (GMM) whose parameters can be computed explicitly is proposed to approximate the distribution of the downlink ICI. Then using the GMM, the CDF of the ICI is approximated as the weighted sum of some error functions. Simulation verifies the accuracy of the GMM and shows that the CDF based on the GMM can well approximate the CDF of the ICI.
- Wireless communications /
- Orthogonal Frequency Division Multiple Access (OFDMA) /
- Inter-cell interference /
- Gaussian Mixture Model (GMM) /
- Cumulative Distribution Function (CDF)

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参考文献(25)

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