Inter-femtocell interference coordination in 3D in-building scenario

doi:10.1016/S1005-8885(11)60243-4

中国邮电高校学报(英文) ›› 2012, Vol. 19 ›› Issue (2): 36-42.doi: 10.1016/S1005-8885(11)60243-4

Inter-femtocell interference coordination in 3D in-building scenario

胡丹¹,李宏佳²,许晓东¹,陶小峰

Wireless Technology Innovation Institute, Key Laboratory of Universal Wireless Communication, Ministry of Education, Beijing University of Posts and Telecommunications, Beijing 100876, China

收稿日期:2011-05-10 修回日期:2011-12-20 出版日期:2012-04-30 发布日期:2012-04-17
通讯作者: 胡丹 E-mail:vivianhudan@gmail.com
基金资助:
This work was supported by the National Natural Science Foundation of China (61001116, 61027003), the National Science and Technology Special Project (2009ZX03003-011), the International Scientific and Technological Cooperation Program (2010DFA11060, S2010GR0902).

Inter-femtocell interference coordination in 3D in-building scenario

Wireless Technology Innovation Institute, Key Laboratory of Universal Wireless Communication, Ministry of Education, Beijing University of Posts and Telecommunications, Beijing 100876, China

Received:2011-05-10 Revised:2011-12-20 Online:2012-04-30 Published:2012-04-17
Contact: Dan Hu E-mail:vivianhudan@gmail.com
Supported by:
This work was supported by the National Natural Science Foundation of China (61001116, 61027003), the National Science and Technology Special Project (2009ZX03003-011), the International Scientific and Technological Cooperation Program (2010DFA11060, S2010GR0902).

摘要/Abstract

摘要：

With rapid development of femtocell, dense deployment of femtocells in buildings will become an important study scenario. In this scenario, there exists severe inter-femtocell interference in the same building, which is revealed by our simulations in the 3-dimention (3D) scenario. If this type of interference is not well controlled, services to indoor users are bound to be deteriorated, especially for the femtocell edge users. Motivated by this problem, femto users’ received interference model is constructed based on the scenario of 3D femtocell deployment. Then, a graph theory based in-building inter-femtocell coordination scheme is proposed, which includes three phases: establishment of femtocell interference graph, femtocell clustering and frequency resources allocation based on the proposed cluster influence circle. Finally, the simulation results confirm that the proposed scheme improves the femtocell average throughput by 22.4% and 26.2% in comparison with frequency universal reuse scheme and frequency hopping scheme respectively, and ensures the channel demodulation reliability of cell edge femto users.

关键词:

femtocell, interference management, resource management, graph

Abstract:

Key words:

femtocell, interference management, resource management, graph

参考文献

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Inter-femtocell interference coordination in 3D in-building scenario

Inter-femtocell interference coordination in 3D in-building scenario

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