Clustering Strategy Based on Graph Method and Power Control for Frequency Resource Management in Femtocell and Macrocell Overlaid System

	Clustering Strategy Based on Graph Method and Power Control for Frequency Resource Management in Femtocell and Macrocell Overlaid System
	Li, Hongjia 1; Xu, Xiaodong 2; Hu, Dan 2; Tao, Xiaofeng 2,3; Zhang, Ping 2; Ci, Song 1; Tang, Hui 1,4
	2011-12-01
发表期刊	JOURNAL OF COMMUNICATIONS AND NETWORKS
ISSN	1229-2370
卷号	13 期号:6 页码:664-677
摘要	In order to control interference and improve spectrum efficiency in the femtocell and macrocell overlaid system (FMOS), we propose a joint frequency bandwidth dynamic division, clustering and power control algorithm (JFCPA) for orthogonal-frequency-division-multiple access-based downlink FMOS. The overall system bandwidth is divided into three bands, and the macro-cellular coverage is divided into two areas according to the intensity of the interference from the macro base station to the femtocells, which are dynamically determined by using the JFCPA. A cluster is taken as the unit for frequency reuse among femtocells. We map the problem of clustering to the MAX k-CUT problem with the aim of eliminating the inter-femtocell collision interference, which is solved by a graph-based heuristic algorithm. Frequency bandwidth sharing or splitting between the femtocell tier and the macrocell tier is determined by a step-migration-algorithm-based power control. Simulations conducted to demonstrate the effectiveness of our proposed algorithm showed the frequency-reuse probability of the FMOS reuse band above 97.6% and at least 70% of the frequency bandwidth available for the macrocell tier, which means that the co-tier and the cross-tier interference were effectively controlled. Thus, high spectrum efficiency was achieved. The simulation results also clarified that the planning of frequency resource allocation in FMOS should take into account both the spatial density of femtocells and the interference suffered by them. Statistical results from our simulations also provide guidelines for actual FMOS planning.
关键词	Clustering femtocell graph interference management power control spectrum reuse
收录类别	SCI
语种	英语
资助项目	National Science and Technology Special Project[2009ZX03003-007-01] ; NSFC[61001116] ; Beijing Municipal Science & Technology Commission[D08080100620802] ; International Cooperation and Exchanges Project[S2010GR0902]
WOS研究方向	Computer Science ; Telecommunications
WOS类目	Computer Science, Information Systems ; Telecommunications
WOS记录号	WOS:000299025200013
出版者	KOREAN INST COMMUNICATIONS SCIENCES (K I C S)
引用统计	被引频次：38[WOS] [WOS记录] [WOS相关记录]
文献类型	期刊论文
条目标识符	http://119.78.100.204/handle/2XEOYT63/13058
专题	中国科学院计算技术研究所期刊论文_英文
通讯作者	Li, Hongjia
作者单位	1.Chinese Acad Sci, Inst Acoust, High Performance Network Lab, Beijing 100864, Peoples R China 2.Beijing Univ Posts & Telecommun, Minist Educ, Key Lab Universal Wireless Commun, Beijing, Peoples R China 3.Beijing Univ Posts & Telecommun, WTI, Beijing, Peoples R China 4.Chinese Acad Sci, Inst Comp Technol, Beijing 100864, Peoples R China
推荐引用方式 GB/T 7714	Li, Hongjia,Xu, Xiaodong,Hu, Dan,et al. Clustering Strategy Based on Graph Method and Power Control for Frequency Resource Management in Femtocell and Macrocell Overlaid System[J]. JOURNAL OF COMMUNICATIONS AND NETWORKS,2011,13(6):664-677.
APA	Li, Hongjia.,Xu, Xiaodong.,Hu, Dan.,Tao, Xiaofeng.,Zhang, Ping.,...&Tang, Hui.(2011).Clustering Strategy Based on Graph Method and Power Control for Frequency Resource Management in Femtocell and Macrocell Overlaid System.JOURNAL OF COMMUNICATIONS AND NETWORKS,13(6),664-677.
MLA	Li, Hongjia,et al."Clustering Strategy Based on Graph Method and Power Control for Frequency Resource Management in Femtocell and Macrocell Overlaid System".JOURNAL OF COMMUNICATIONS AND NETWORKS 13.6(2011):664-677.