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多小区V-BLAST系统中基于后验信干比平衡的功率控制方法

A Power Control Method Based on Post-Detection SINR Balancing in Cellular V-BLAST Systems
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摘要 针对多小区V-BLAST系统中的同信道干扰问题,提出了一种基于后验信干比平衡的功率控制方法以及简化的次优算法,通过调整各基站每个发送天线的功率,平衡移动台接收端各路子流的后验信干比.仿真结果表明,与现有功率控制方法相比,该方法在系统中断概率以及平均误比特率(BER)上都可以达到更好的性能.次优算法在保持较高性能增益的同时显著降低了运算的复杂度. Power control is an effective technique to restrain the co-channel interference （CCI） in a cellular system. In this paper, an optimal power control method based on post-detection SINR balancing for a cellular V-BLAST system is proposed. Its simplified solution with reduced complexity is provided. The proposed method may balance the postdetection SINR of each substream at mobile stations （MS） by adjusting power levels of every transmit antenna at base stations （BS） in the system. Simulation results show that the proposed method outperforms existing power control methods both in the system outage probab complexity with slight performance ility and BER performance. The simplified solution significantly reduces computing degradation.
作者 魏传明 邱玲 朱近康
机构地区 中国科学技术大学电子工程与信息科学系
出处 《应用科学学报》 CAS CSCD 北大核心 2007年第1期11-15,共5页 Journal of Applied Sciences
基金 国家自然科学基金(60390540) 国家"863"高技术研究发展计划(2005AA123920)资助项目
关键词 多输入多输出 多小区 垂直分层-贝尔实验室分层空时结构 功率分配 后验信干比 MIMO cellular V-BLAST power allocation post-detection SINR
分类号 TN925.93 [电子电信—通信与信息系统] TP393.17 [自动化与计算机技术—计算机应用技术]
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参考文献10

  • 1FOSCHINI G J,GANS M J.On limits of wireless communications in a fading environment when using multiple antennas[J].Wireless Personal Communications,1998,6(3):311-335.
  • 2WOLNIANSKY P W,FOSCHINI G J,GOLDEN G D,VALENZUELA R A.V-BLAST:an architecture for realizing very high data rates over the rich-scattering wireless channel[C]//Proc Int Symp Signals Syst,Electron.Pisa:1998:295-300.
  • 3CHUNG S,HOWARD H C,LOZANO A.Approaching eigenmode BLAST channel capacity using V-BLAST with rate and power feedback[C]//Proc VTC 2001 Fall.Atlantic City,NJ:2001.2:915-919.
  • 4CHUNG S,HOWARD H C,LOZANO A.Low complexity algorithm for rate quantization in extended V-BLAST[C]//Proc VTC 2001 Fall.Atlantic City,NJ:2001.2:910 -914.
  • 5NAM S H,SHIN O S,LEE K B.Transmit power allocation for a modified V-BLAST system[J].IEEE Transactions on Communications,2004,52(7):1074-1079.
  • 6ZHUANG H,DAI L,ZHOU S D,YAO Y.Low complexity per-antenna rate and power control approach for closed-loop V-BLAST[J].IEEE Transactions on Communications,2003,51(11):1783-1787.
  • 7ZHAO Kun,QIU Ling,ZHU Jinkang,SI Yanhua.Low complexity power control approach based on MMSE detection for V-BLAST[C]∥Proc IEEE PIMRC.Berlin:2005.
  • 8GRANDHI S A,VIJAYAN R,GOODMAN D J,ZANDER J.Centralized power control in cellular radio systems[J].IEEE Trans on V T,1993,42(4):466 -468.
  • 9DEMIRKOL M F,INGRAM M A.Power-controlled capacity for interfering MIMO links[C]//Proc VTC 2001 Fall.Atlantic,NY:2001.1:187-191.
  • 10赵昆,邱玲,朱近康.蜂窝V-BLAST系统中的功率平衡方法[J].电子与信息学报,2005,27(7):1106-1109. 被引量：1

二级参考文献11

  • 1Wolniansky P W, Foschini G J, Golden G D, Valenzuela R A.V-BLAST: An architecture for realizing very high data rates over the rich-scattering wireless channel. ISSSE, Pisa, Italy, 1998:295 - 300.
  • 2Alamouti S M. A simple transmit diversity technique for wireless communications. IEEE J. on Select Areas in Communications,1998, 16(8): 1451 - 1458.
  • 3Blum R S. MIMO capacity with interference. IEEE J. on Selected Areas in Communication, 2003, 21(5): 793 - 801.
  • 4Kang M, Alouini M S. Performance analysis of MIMO systems with cochannel interference over Rayleigh fading channels. ICC,New York, NY, USA, 2002:391 - 395.
  • 5Golden G D, Foschini C J, Valenzuela R A, Wolniansky P W.Detection algorithm and initial laboratory results using the V-BLAST space-time communication architecture. Electronics Letters, 1999, 35(1): 14 - 16.
  • 6Catreux S, Driessen P F, Greenstain L J. Simulation results for an interference-limited multiple-input multiple-output cellular system. IEEE Communications Letters, 2000, 4(11): 334 - 336.
  • 7Aein J M. Power balancing in systems employing frequency reuse. COMSAT Tech. Rev., 1973, 3(2): 277- 299.
  • 8Grandhi S A, Vijayan R, Goodman D J, Zander J. Centralized power control in cellular radio systems. IEEE Trans. on VT, 1993,42(4): 466 - 468.
  • 9Hasu V, Koivo HN. A block MIMO PI-Power control algorithm for cellular systems. VTC 2001 fall, Atlantic, NY, USA, 2001:1927- 1931.
  • 10Goldsmith A, Jafar S A, Jindal N, Vishwanath S. Capacity limits of MIMO channels. IEEE J. on Selected Areas in Communications, 2003, 21(5): 684 - 702.
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