| 摘 要: 针对在Massive MIMO系统中限制系统的码速率的主要因素是不同小区间的干扰，提出了基于“四色原 理”结合频分和码分并结合软频率复用(SFR)的蜂窝系统模型，并利用扇区划分采用定向天线提高系统容量。此模型增 加了复用同一资源的小区之间的距离，减轻小区间的干扰。由于码分、频分结合使用，相比于仅用一种资源的复用技术 提高通信系统的可靠性。 |
| 关键词: 四色原理；蜂窝系统；Massive MIMO；软频率复用 |
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中图分类号: TP301.6
文献标识码: A
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| Cell Distribution and Interference Contrast Based on the "Four-color Theorem" |
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LI Na，WEI Jiangping，ZHAO Bingbing，ZHANG Wei，YUAN Weina
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( East China University of Science and Technology, Shanghai 200237, China)
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| Abstract: view of the main factors restricting the code rate of the Massive MIMO system is the interference between different inter-cells,we come up with a model of cellular system that is based on "Four-color Theorem" combined with frequency division,code division and soft frequency reuse(SFR).Meanwhile,we use sector partition and directional antenna to improve the system capacity.This model increases the distance between inter-cells that reuse the same resource,and reduce the interference between the inter-cells.Because of the combination of code division and frequency division,this model improves the reliability of the communication system compared with the reuse technology that uses only one resource. |
| Keywords: four-color theorem;cellular system;massive MIMO;soft frequency reuse |
