异构网络中软频率复用场景下的干扰管理
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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.
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.
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.
引文
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[2]Abedi M R,Mokari N,Javan M R,et al.Limited rate feedback scheme for resource allocation in secure relay-assisted OFDMA networks[J].IEEE Transactions on Wireless Communications,2016,15(4):2604-2618.
[3]Yu Y,Dutkiewicz E,Huang X J,et al.Adaptive power allocation for soft frequency reuse in multi-cell LTE networks[C]//IEEE.2012 International Symposium on Communications and Information Technologies(ISCIT),Gold Coast:IEEE,2012.
[4]Zhang X Y,He C,Jiang L,et al.Inter-cell interference coordination based on soft frequency reuse in OFDMA cellular systems[C]//IEEE.2008 International Conference on Neural Networks and Signal Processing,Nanjing:IEEE,2008.
[5]Yoon J,Arslan M Y,Sundaresan K,et al.Self-organizing resource management framework in OFDMA Femtocells[J].IEEE Transactions on Mobile Computing,2015,14(4):843-857.
[6]Yusuf N,Fahmi A,Astuti R P,et al.Distributed FFR as the novelty solution of the integration Femtocell and Macrocell in cellular network[C]//IEEE.2015 IEEE Asia Pacific Conference on Wireless and Mobile,Bandung:IEEE,2015.
[7]Zahir T,Arshad K,Nakata A,et al.Interference management in Femtocells[J].IEEE Communications Surveys&Tutorials,2013,15(1):293-311.
[8]Andrews J G,Ganti R K,Haenggi M,et al.A primer on spatial modeling and analysis in wireless networks[J].IEEE Communications Magazine,2010,48(11):156-163,.
[9]Heinz R K,Skov A N P.Third generation partnership project(3GPP)[M]//Hillebrand F.GSM and UMTS:The creation of global mobile communication.New York:John Wiley&Sons,2002:221-261.
[10]Jin S,Ping L.Parallel two-way relaying in cooperative OFDMA cellular systems[J].IEEE Transaction on Signal Processing,2016,64(1):48-59.