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异构网络中软频率复用场景下的干扰管理
傅玲莉, 张静
上海师范大学 信息与机电工程学院, 上海 200234
摘要:
将软频率复用(SFR)引入到由毫微微小区和宏小区组成的双层异构网络中,提出基于软频率复用的小区间干扰协调(ICIC)方案.先根据SFR方法对宏小区进行频率资源分配,然后使毫微微小区用户使用宏小区用户未占用的频率资源.仿真结果表明:该方案能有效地解决宏小区和毫微微小区间的同频干扰问题.
关键词:  异构网络  共信道干扰  频率资源分配  软频率复用  小区间干扰协调
DOI:10.3969/J.ISSN.1000-5137.2017.01.010
分类号:
基金项目:
Soft frequency reuse for interference management in heterogeneous network
Fu Lingli, Zhang Jing
College of Information, Mechanical and Electrical Engineering, Shanghai Normal University, Shanhai 200234, China
Abstract:
In this paper,soft frequency reuse (SFR) is introduced as an effective Inter-cell Interference Coordination (ICIC) scheme to overcome interference among femtocells and macrocells.While a macrocell allocates frequency band using a SFR map,femtocell chooses sub-bands which are not used by the macrocell sub-area users to avoid interference.Simulation results show that the proposed scheme can solve the problem of interference among macrocells and femtocells.
Key words:  heterogeneous network  co-channel interference  frequency allocation  soft frequency reuse  inter-cell interference coordination