叶鹏,
彭张节,
唐延枝
上海师范大学信息与机电工程学院 ??上海 ??200234
基金项目:国家自然科学基金青年科学基金(61701307)，上海高校青年教师培养资助计划(ZZssd16044)
详细信息
作者简介:李莉：女，1962年生，博士，教授，研究方向为认知异构网络资源分配和干扰管理
叶鹏：男，1993年生，硕士生，研究方向为异构网干扰协调方案和无线通信
彭张节：男，1982年生，博士，副教授，研究方向为大规模MIMO技术与无线通信协作传输
唐延枝：女，1993年生，硕士生，研究方向为异构网干扰协调方案和无线通信
通讯作者:李莉 lilyxuan@shnu.edu.cn
中图分类号:TN929.5计量
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被引次数:0
出版历程
收稿日期:2018-03-28
修回日期:2018-10-10
网络出版日期:2018-10-25
刊出日期:2019-01-01
Research on Joint Interference Coordination Approach in Ultra-dense Heterogeneous Network
Li LI,,Peng YE,
Zhangjie PENG,
Yanzhi TANG
College of Information , Mechanical and Electical Engineering, Shanghai Normal University, Shanghai 200234, China
Funds:The National Natural Science Foundation of China for Distinguished Young Scholar (61701307), The Excellent Young Teachers Program in Higher Education Institutions of Shanghai (ZZssd16044)
摘要
摘要:针对5G超密集异构网中严重的跨层干扰问题，该文提出一种基于现有的增强型小区间干扰协调技术和协同多点传输技术的联合干扰协调方法。运用随机几何理论工具推导了两层超密集异构网下用户的中断概率，频谱效率和网络平均遍历容量表达式。仿真结果表明：该文提出的联合的干扰协调方案，相比于传统协同多点传输技术，不仅降低了协作用户数目，同时使得用户在信干比阈值为0 dB时的中断概率降低了15%；相比较于增强型小区间干扰协调技术，在偏置值为10 dB时，扩展区域的用户频谱效率改善为35%，整个网络平均遍历容量提升了3.4%。
关键词:异构网络/
随机几何理论/
增强型小区间干扰协调/
协同多点传输
Abstract:This paper presents an approach of combining the existing enhanced inter-cell interference coordination technology and the downlink joint transmission scheme of coordinated multi-point transmission technology to solve the problem of serious cross-layer interference in 5G ultra-dense heterogeneous network. With using tools from stochastic geometry theory, the expressions such as the outage probability, spectrum efficiency and network average ergodic capacity of two-layer ultra-dense heterogeneous network are derived. Simulation results show that the proposed joint interference coordination scheme not only reduces the number of cooperative users compared with the traditional coordinated multi-point transmission technology, but also reduces the outage probability of users by 15% in the network at 0 dB. Compared with the enhanced inter-cell interference coordination technology, when the bias value is 10 dB, the user spectrum efficiency in the extended area is improved to 35% and the average traversal capacity of the entire network is increased by 3.4%.
Key words:Heterogeneous network/
Stochastic theory/
Enhanced inter-cell interference coordination/
Coordinated multipoint transmission
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