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基于用户组簇的LTE上行链路联合调度和功率分配算法

Cooperative scheduling and power allocation scheme based on user clustering in LTE uplink
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摘要 在同频组网的LTE系统中,严重的小区间干扰成为限制小区边缘用户性能提升的瓶颈.在LTE上行链路中,传统的单小区独立调度算法并未考虑小区间干扰情况.为此,提出了一种基于用户组簇的联合调度和功率分配方案,以抑制小区间干扰,提升系统性能.该方案对来自不同小区的用户组簇,以用户簇为对象执行基于正比例公平(PF)准则的联合调度,并根据簇内用户相互干扰情况建立功率优化模型,通过求解该模型次优解得到联合功率分配方案.系统仿真结果表明,基于用户组簇的联合调度和功率分配方案能够改善边缘用户吞吐量,同时显著提升系统吞吐量. Inter-cell interference is serious in LTE co-channeI networks, which becomes the bottleneck of outage performance enhancement in LTE networks. However, inter-cell interference is not considered when applying conventional single-cell scheduling algorithms in LTE uplink. A cooperative scheduling and power allocation scheme based on user clu^tering was proposed in order to mitigate inter-cell interference and enhance system performance, in which users from different cells who share the same resource blocks were clustered. The cooperative scheduling algorithm based on the proportional fair criterion was developed to allocate resourcs among user clusters. The cooperative power allocation was achieved by solving a set of power optimization problems formulated with interference among users in the same user cluster. The simulation result shows that the cooperative scheduling and power allocation scheme based on user clustering is efficient in terms of outage throuvhn,,t hll 1 L
出处 《中国科学技术大学学报》 CAS CSCD 北大核心 2015年第4期294-301,共8页 JUSTC
基金 科技部国际合作项目(2014DFE10160) 国家自然科学基金(61471347) 中国高技术研究发展(863)计划(2014AA01A701) 工业与信息化部重大专项(2015ZX03001032) 上海市重大项目(14511101501) 上海市自然科学基金(15ZR1439700)资助
关键词 LTE上行链路 用户组簇 联合调度 联合功控 LTE uplink cooperative scheduling cooperative power control
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参考文献18

  • 1Hamza A S, Khalifa S S, Hamza H S, et al. A survey on inter-cell interference coordination techniques in OFDMA-based cellular networks [J]. IEEE Communications Surveys & Tutorials, 2013, 15 (4) : 1642-1670.
  • 23GPP. Requirements for evolved UTRAN ( E- UTRAN) and X2 application protocol (X2AP) V8. 6. 0[R]. Technique Report, 2009.
  • 3张光荣,吴文银,徐茂,陈晓辉,卫国.一种联合HII和OI的上行干扰协调方法[J].中国科学院研究生院学报,2012,29(5):667-673. 被引量:3
  • 4Pateromichelakis E, Shariat M, ul Qussus A, et al. On the evolution of multi-cell scheduling in 3GPP LTE/LTE-A[J]. IEEE Communications Surveys Tutorials, 2013, 15(2).. 701-717.
  • 5Hande P, Rangan S, Chiang M, et al. Distributed uplink power control for optimal SIR assignment in cellular data networks [J]. IEEE/ACM Transactions on Networking, 2008, 16(6): 1420-1433.
  • 6Reider N, Rahcz A, Fodor G. On scheduling and power control in multi-cell coordinated clusters [C]// Global Telecommunications Conference. Honolulu,USA: IEEE Press, 2009: 1-7.
  • 7Frank P, Muller A, Droste H, et al. Cooperative interference-aware joint scheduling for the 3GPP LTE uplink[C]//21st International Symposium on Personal Indoor and Mobile Radio Communications. Berlin, Germany: IEEE Press, 2010: 2216-2221.
  • 8Niu JP, Lee D, Su T, et al. Multi-cell cooperative scheduling for uplink SC-FDMA systems[C]// 24th International Symposium on Personal Indoor and Mobile Radio Communications. London, UK: IEEE Press, 2013: 1582-1586.
  • 9KavianiS, Krzymien W A. Multicell scheduling in network MIMO [ C ]//Global Telecommunications Conference. Miami, USA: IEEE Press, 2010: 1-5.
  • 10Gong J, Zhou S, Niu Z S, et al. Joint scheduling and dynamic clustering in downlink cellular networks[C]// Global Telecommunications Conference. Houston, USA: IEEE Press, 2011: 1-5.

二级参考文献10

  • 1IEEE 802.16m. IEEE 802.16m system requirements V07/002r5 [S]. 2008.
  • 23GPP TR 25.913. Requirements for evolved UTRA (E-UTRA) and evolved UTRAN (E-UTRAN) V7.3.0 [S]. 2006.
  • 3Huawei. Soft frequency reuse scheme for UTRAN LTE . .http://www.3gpp.org/ftp/tsg_ran/WG1_RL1/TSGR1_41/Docs/R1-050507.zip, 2005.
  • 43GPP TS 36.423. Requirements for evolved UTRAN (E-UTRAN) and X2 application protocol (X2AP) V8.6.0 [M]. 2009.
  • 5Mao X H, Maaref A, Teo K H. Adaptive soft frequency reuse for inter-cell interference coordination in SC-FDMA based 3GPP LTE uplinks //IEEE Global Telecommunications Conference. 2008: 1-6.
  • 6Zhang G R, Zhang C, Wei G. A novel uplink interference coordination scheme using high interference indicator // IEEE Vehicular Technology Conference (VTC) fall. Ottawa, Canada, 2010: 1-5.
  • 7Castellanos C U, Calabrese F D, Pedersen K I, et al. Uplink interference control in UTRAN LTE based on the overload indicator // IEEE Vehicular Technology Conference (VTC) Fall. Alberta, Canada, 2008: 1-5.
  • 8Nokia. Uplink ICIC and usage of OI for overload coordination . .http://www.3gpp.org/ftp/tsg_ran/WG1_RL1/TSGR1_51/Docs/R1-074891.zip, 2007.
  • 9NTT DoCoMo. Investigation on inter-cell transmission power control based on overload . .http://www.3gpp.org/ftp/tsg_ran/WG1_RL1/TSGR1_48b/Docs/R1-071634.zip, 2007.
  • 10Feng M, Chen L. Uplink adaptive resource allocation mitigating inter-cell interference fluctuation for future cellular systems // IEEE International Conference on Communications (ICC). 2007: 5519-5524.

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