期刊文献+

一种MIMO系统中的新型资源分配算法 被引量:6

A novel resource allocation algorithm for MIMO systems
下载PDF
导出
摘要 本文提出了一种MIMO(Multi-Input and Multi-Output)系统中的新型自适应调制和功率分配算法,在奇异值分解的基础上通过注水算法进行功率分配,此后根据所分配的功率与信道状态信息来确定自适应调制的门限及相应的调制阶数,并在自适应调制后通过功率修正因子来弥补常见算法中功率不能得到有效利用的问题,仿真结果表明该算法可以得到较高的频谱效率。 In this paper, a novel adaptive modulation and power allocation algorithm is presented for MIMO (Multi-Input and Multi-Output) systems. Based on the Singular Value Decomposition (SVD), the power is allocated to each antenna by water-filling algorithm. Then the modulation order is determined by the SNR of each channel. With a correction factor, the transmission power is fully used. The simulation results show that the proposed algorithm obtains high spectrum efficiency.
出处 《电路与系统学报》 CSCD 北大核心 2006年第5期84-87,131,共5页 Journal of Circuits and Systems
基金 陕西省国际合作资助项目 华为基金资助项目 西安电子科技大学研究生创新基金资助项目 通信抗干扰技术国家重点实验室基金资助项目
关键词 MIMO(Multi—Input and Multi—Output) 自适应调制和功率分配 奇异值分解 注水算法 功率修正因子 MIMO (Multi-Input and Multi-Output) adaptive modulation and power allocation Singular Value Decomposition (SVD) water-filling algorithm power correction factor
  • 相关文献

参考文献8

  • 1BrankaVucetic JinhongYuan 王晓海 译.空时编码技术[M].北京:机械工业出版社,2004..
  • 2Christian Schneider. multiple input - multiple output (mimo) communication system [M]. Telenor R&D, 2001-05.
  • 3Maaref A, Aissa S. Rate-adaptive M-QAM in MIMO diversity systems using space-time block codes [A]. Personal, Indoor and Mobile Radio Communications, 2004. PIMRC 2004. 15th IEEE International Symposium [C]. 2004-09, 4:2294-2298.
  • 4Youngwook Ko, Cihan Tepedelenlioglu. Optimal switching thresholds for Space-Time Block Coded rate-adaptive M-QAM [A]. Acoustics,Speech, and Signal Processing, 2004. Proceedings. (ICASSP '04). IEEE International Conference [C]. 2004-05, 4: 17-21.
  • 5Seong Taek Chung, Lozano A, Huang H C. Low complexity algorithm for rate and power quantization in extended V-BLAST [A]. Information Theory, 2001, Proceedings, 2001 IEEE International Symposium [C]. 2001-06. 310.
  • 6贺志强,王晓湘,吴伟陵.一种新的时变衰落信道下MIMO系统的功率分配与自适应调制算法[J].电子学报,2004,32(9):1556-1559. 被引量:10
  • 7Ian C Wong, Zukang Shen, Brian L Evans, Jeffrey G Andrews. A Low Complexity Algorithm for Proportional Resource Allocation in OFDMA Systems [A]. SIPS2004 [C].
  • 8S T Chung, A Goldsmith. Degrees of Freedom in Adaptive Modulation: A Unified View [J]. IEEE Trans. Commun., 2001, 49(9): 1561.1571.

二级参考文献9

  • 1[1]Foschini 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.
  • 2[2]Foschini G J.Layered space-time architecture for wireless communication in a fading environment when using multi-element antennas[J].Bell Labs Tech,1996,1(2):41-59.
  • 3[3]Goldsmith A J,Chua S.Variable-rate Variable-power MQAM for fading channels[J].IEEE Trans on Communication,1997,45(10):1218-1230.
  • 4[4]Catreux S,Erceg V,Gesbert D,et al.Adaptive modulation and MIMO coding for broadband wireless data networks[J].IEEE Communications Magazine,2002,40(6):108-115.
  • 5[5]Chung S,Howard H C,Lozano A.Approaching eigenmode BLAST channel capacity using VBLAST with rate and power feedback[A].Proc of IEEE Vehic Technol conf[C].Jersey City,NJ:IEEE,2001.915-919.
  • 6[6]Chung S,Howard H C,Lozano A.Low complexity algorithm for rate and power quantization in extended V-BLAST[A].Proc of IEEE Vehic Technol conf[C].Jersey City,NJ:IEEE,2001.910-914.
  • 7[7]Khalighi M A,Raoof K,G Jourdain.Capacity of wireless communication systems employing antenna arrays,a tutorial study[J].Wireless Personal Communication,2002,13(1):1-30.
  • 8[8]Telatar I E.Capacity of multi-antenna Gaussian channels[J].European Transactions on Telecommunication,1999,10(11):585-595.
  • 9[9]Foschini G J,Salz J.Digital communications over fading radio channels[J].Bell Syst Tech,1983,12(2):429-456.

共引文献24

同被引文献25

引证文献6

二级引证文献5

相关作者

内容加载中请稍等...

相关机构

内容加载中请稍等...

相关主题

内容加载中请稍等...

浏览历史

内容加载中请稍等...
;
使用帮助 返回顶部