蜂窝小区边缘同频嵌入垂直覆盖的网络性能

发布时间：2018-12-13 13:24

【摘要】：提出一种在蜂窝小区边缘同频嵌入垂直覆盖的新型混合小区网络结构,具有抑制小区间干扰和提高边缘信干比等优点。该网络结构是以不改变目前蜂窝网络"水平覆盖"结构的前提下,在小区边缘干扰区域同频嵌入天线波束为垂直向下的微小基站,称作"垂直覆盖",因此易于实际操作和实现。首先分析了蜂窝小区水平覆盖的干扰深度,垂直覆盖基站的干扰特性及各自的频谱效率。随后,针对提出的蜂窝小区边缘同频嵌入垂直覆盖的网络结构,分别研究了混合小区的水平覆盖中心区域和垂直覆盖小区边缘区域的频谱效率。结果表明,提出的新型混合小区网络结构,能有效抑制蜂窝小区间干扰,改善小区边缘性能,实现更高的频谱效率。
[Abstract]:A new hybrid cell network structure with vertical coverage embedded at the same frequency of the edge of the cellular cell is proposed, which has the advantages of suppressing inter-cell interference and improving the signal-to-interference ratio of the edge. Without changing the present "horizontal coverage" structure of cellular network, the network structure is to embed antenna beams in the edge interference area of the cell as a vertical downward microbase station, which is called "vertical coverage". Therefore, it is easy to operate and implement in practice. Firstly, the interference depth of horizontal coverage, the interference characteristics of vertical coverage base station and their spectral efficiency are analyzed. Then, the spectral efficiency of the horizontal coverage center region and the vertical coverage edge region of the hybrid cell are studied, respectively, for the proposed network structure in which the edge of the cell is embedded in vertical coverage at the same frequency. The results show that the proposed new hybrid cell network structure can effectively suppress cellular cell interference, improve cell edge performance and achieve higher spectral efficiency.
【作者单位】：中国科学技术大学电子工程与信息科学系;
【基金】：国家自然科学基金资助项目(61172088) 国家高技术研究发展计划(“863”计划)基金资助项目(SS2012AA011702,2014AA01A702)~~
【分类号】：TN929.5

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