Joint optimization algorithm for enhanced inter-cell interference coordination in heterogeneous networks

被引:0
作者
Jiang L.-W. [1 ]
Wu X.-L. [1 ]
Zhang N.-T. [1 ]
机构
[1] Harbin Institute of Technology, Communication Technology Institute, Harbin
来源
Jiang, Lai-Wei | 1600年 / Editorial Board of Journal on Communications卷 / 37期
基金
中国国家自然科学基金;
关键词
Enhanced inter cell interference coordination; Heterogeneous networks; LTE-Advanced; Reduced power almost blank subframe;
D O I
10.11959/j.issn.1000-436x.2016040
中图分类号
学科分类号
摘要
The total system throughput was improved by means of enhanced inter-cell interference coordination (eICIC) in heterogeneous networks(HetNets) in LTE-Advanced system. Through analyzing the existing system interference, a mathematical model was established and a joint optimization algorithm for eICIC was raised based on the reduced power almost blank subframe. By using this optimized method, the relationship between the total system throughput and the reduced power almost blank subframe was studied, so as to realize the maximized total system throughput and solve the problems of the amount of radio resources that macro cells should offer to pico cells and UE assignments. Simulation results show that, compared with the comparative method, the proposed method has 19.8% improvement in the total system throughput and the optimality gap is 97.4%. Conclusions can be drawn that the proposed method is suitable for the scene where the total system throughput requirement is relatively high while the performance of the edge user requirement is relatively low. © 2016, Editorial Board of Journal on Communications. All right reserved.
引用
收藏
页码:143 / 150
页数:7
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