LTE架构下的Macro-Femtocell网络干扰建模  

Interference modeling in LTE Macro-Femtocell networks

作　　者：郑岩[1] 顾学迈[1] 郭庆[1] 贾敏[1] 娄毅[1] 

机构地区：[1]哈尔滨工业大学通信技术研究所,哈尔滨150080

出　　处：《吉林大学学报（工学版）》2015年第5期1636-1641,共6页Journal of Jilin University:Engineering and Technology Edition

基　　金：国家自然科学基金项目(61201143)

摘　　要：为解决宏蜂窝中覆盖毫微微蜂窝(Femtocell)引起的干扰问题,建立了同层干扰和跨层干扰同时存在时的数学模型。利用干扰因子进行干扰定性并划分干扰区域,将整个网络分为同层干扰主导区、跨层干扰主导区和同层跨层均衡区。根据干扰模型设定合理的干扰因子,在不影响Femtocell用户(FUE)性能的条件下,只需单独考虑同层干扰或跨层干扰。研究了3种区域的概率分布,为实际工程中部署毫微微蜂窝等微小基站提供了理论依据,同时降低了频谱分配、功率控制和接入管理等干扰管理策略的复杂度。In order to resolve the interference caused by the deployment of Femtocells in Macrocell, a co-tier interference and cross-tier interference coexistent model is proposed. By means of interference factor, the whole interference network is parted into co-tier-dominated, cross-tier-dominated and balanced areas. According to interference model and reasonable interference factor, the co-tier interference or cross-tier interference can be considered alone without impairing the performance of the Femtocell users. The probability distribution of the three areas is studied, which can provide theoretical guidance for practical project when laying out Femtocells in Macrocell. It can reduce the complicity of spectrum allocation, power control and access management.

关 键 词：通信技术 干扰管理 干扰定性 毫微微蜂窝 同层干扰 跨层干扰 

分 类 号：TN914[电子电信—通信与信息系统]