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OFDMA Femtocell网络中混合接入方式下的资源分配策略 被引量：8

Resource Allocation in Hybrid Access OFDMA Femtocell Networks
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摘要 Femtocell(飞小区)能够有效加强室内覆盖和系统容量。混合接入(hybrid access)方式可以兼顾授权用户和非授权用户的业务体验。针对下行混合接入方式下的正交频分复用接入(OFDMA)Femtocell网络,该文提出带权重的比例公平(WPF)调度算法,为不同类型的用户提供不同的调度权重。该文提出两种算法确定用户的调度权重,一种是自适应权重的比例公平算法,实时调整调度权重;另一种是静态权重的比例公平算法,基于WPF调度的渐近性分析得到静态最优调度权重。仿真结果表明该文提出的两种算法均能在授权用户和非授权用户间合理分配资源,保证不同用户的速率需求。 Femtocells are a promising solution to enhance indoor coverage and system capacity.Hybrid access methods reach a compromise between the performance of subscribers and non-subscribers.In this paper,a Weighted Proportional Fair（WPF） algorithm is proposed,in which different users with different weights,for the downlink hybrid access OFDMA femtocell networks.Besides,two algorithms are developed to obtain the user scheduling weight.The one is that adaptively change the scheduling weight,the other is based on the asymptotic analysis of WPF algorithm.Simulation results show that the two scheduling algorithms in the hybrid access femtocells could reasonably allocate the resource between the subscribers and non-subscribers and ensure the rate requirements of different users.
作者 张宝 邱玲
机构地区 中国科学技术大学个人通信与扩频实验室
出处 《电子与信息学报》 EI CSCD 北大核心 2011年第11期2569-2574,共6页 Journal of Electronics & Information Technology
基金 国家科技重大专项课题(2009ZX03002-001) 国家重点基础研究发展计划(2007CB310602)资助课题
关键词 OFDMA 飞小区 混合接入方式 资源分配 带权重的比例公平算法 OFDMA Femtocell Hybrid access Resource allocation Weighted Proportional Fair（WPF）
分类号 TN929.5 [电子电信—通信与信息系统]
  • 相关文献

参考文献14

  • 1Chandrasekhar V and Andrews J G. Femtocell networks: asurvey [J]. IEEE Communications Magazine, 2008, 46(9): 59-67.
  • 2Lopez-perez D, Valcrce A, De La Roche G, et al.. OFDMAfemtocells: a roadmap on interference avoidance [J]. IEEE Communications Magazine~ 2009, 47(9): 41-48.
  • 3Chandrasekhar V and Andrews J G. Spectrum allocation in tiered cellular networks [J]. IEEE Transactions Communications, 2009, 57(10): 3059-3068.
  • 4Chandrasekhar V, Andrews J G, Muharemovic T, et al.. Power control in two-tier femtocell networks [J]. IEEE Transactions on Wireless Communications, 2009, 8(8): 4316-4328.
  • 5Lopez-perez D, Ladanyi A, Jtlttner A, et al.. OFDMA femtocells: a self-organizing approach for frequency assignment [C]. IEEE Personal, Indoor and Mobile Radio Communications (PIMRC), Tokyo, Japan, September 2009: 2202-2207.
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同被引文献68

  • 1Chandrasekhar V, Andrews J G, Gatherer A. Femtocell networks: A survey[J]. IEEE Communications Magazine, 2008, 46(9): 59-67.
  • 2Park S, Seo W, Kim Y, et al. Beam subset selection strategy for interference reduction in two-tier femtocell networks[J]. IEEE Trans on Wireless Communication, 2010, 9(11): 3440-3449.
  • 3Karlsson R S. Radio resource sharing and capacity of some multiple access methods in hierarchical cell structures[C]. IEEE 50th Vehicular Technology Conf. Amsterdam, 1999, 5: 2825-2829.
  • 4Chandrasekhar V, Andrews J G, Muharemovic T, et al. Power control in two-tier femtocell networks[J]. IEEE Trans on Wireless Communication, 2009, 8(8): 4316-4328.
  • 5Kang X, Liang Y C, Garg H K. WCA: Distributed power control for spectnnn-sharing Femtocell networks using stackelberg game[C]. 2011 IEEE Int Conf. Singapore, 2011: 1-5.
  • 6Kang X, Zhang R, Motani M. Price-based resource allocation for spectrum-sharing femtoceU networks: A stackelberg game approach[J]. IEEE J on Selected Areas in Communication, 2012, 30(3): 538-549.
  • 7Yu H, Gao L, Li Z, et al. Pricing for uplink power control in cognitive radio networks[J]. IEEE Trans Vehicular Technology, 2010, 59(4): 1769-1778.
  • 8Zhang J, Zhang Q. Stackelberg game for utility-based cooperative cognitive radio networks[C]. Proc of the 10th ACM Int Symposium on Mobile ad Hoc Networking and Computing. New Orleans, 2009: 23-32.
  • 9Chandrasekhar V,Andrews J G.Femtocell networks:a survey.Communications Magazine,IEEE,2008 , 46 (9):59-67.
  • 10Lin Peng,Zhang Jin,Chen Yanjiao,et al.Macro-femto heterogeneous network deployment and management:from business models to technical solutions.Wireless Communications,IEEE,2010 , 18 (3):64-70.

引证文献8

二级引证文献18

电子与信息学报
2011年 第11期

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