Improvement of a MIMO antenna structure with combination of transmit beamforming and spatial multiplexing

被引：0
作者：
School of Telecommunication Engineering, Beijing University of Posts and Telecommunications, Beijing, 100876, China [1 ]
机构：
[1] School of Telecommunication Engineering, Beijing University of Posts and Telecommunications, Beijing
来源：
J. China Univ. Post Telecom. | 2008年 / 1卷 / 91-95期
关键词：
antenna grouping; beamforming; multiple-input multiple-output (MIMO); semi-correlated channel; TN929.53; uncorrelated channel;
D O I：
10.1016/S1005-8885(08)60068-0
中图分类号：
学科分类号：
摘要：
Downlinks of the cellular systems generally have more transmit antennas than receive antennas. To efficiently exploit all antenna resources, a technique that combines the advantage of beamforming and spatial multiplexing has been proposed, which partitions the transmit antennas into neighboring sub-groups. In this article, this technique is further improved by Eq. (1) allowing non-contiguous antenna grouping, and Eq. (2) adopting two new grouping criteria: minimum signal distance maximization (MSDM) criterion and maximum correlation coefficient minimization (MCCM) criterion. Simulation results indicate that these improvements can bring noticeable gains in the Rayleigh flat fading channel environment. © 2008 The Journal of China Universities of Posts and Telecommunications.
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页码：91 / 95
页数：4
相关论文
共 9 条
  • [1] Choi J., A semiblind method for transmit antenna arrays in CDMA systems, IEEE Transactions on Vehicular Technology, 51, 4, pp. 624-635, (2002)
  • [2] Xia P., Giannakis G., Design and analysis of transmit-beamforming based on limited-rate feedback, IEEE Transactions on Signal Processing, 54, 5, pp. 1853-1863, (2006)
  • [3] Zeng Y., Zhang Z.-f., Joint transmit beamforming and power control in multi-user MIMO downlink using a game theoretic approach, The Journal of China Universities of Posts and Telecommunications, 14, 2, pp. 14-18, (2007)
  • [4] Narasimhan R., Spatial multiplexing with transmit antenna and constellation selection for correlated MIMO fading channels, IEEE Transactions on Signal Processing, 51, 11, pp. 2829-2838, (2003)
  • [5] Gore D., Heath R.W., Paulraj A., Transmit selection in spatial multiplexing systems, IEEE Communications Letters, 6, 11, pp. 491-493, (2002)
  • [6] Bahceci I., Duman T., Altunbasak Y., Antenna selection for multiple-antenna transmission systems: performance analysis and code construction, IEEE Transactions on Information Theory, 49, 10, pp. 2669-2681, (2003)
  • [7] Alamouti S., A simple transmit diversity technique for wireless communications, IEEE Journal on Selected Areas in Communications, 16, 8, pp. 1451-1458, (1998)
  • [8] Narula A., Lopez M., Trott M., Et al., Efficient use of side information in multiple-antenna datatransmission over fading channels, IEEE Journal on Selected Areas in Communications, 16, 8, pp. 1423-1436, (1998)
  • [9] Ivrlac M., Utschick W., Nossek J., Fading correlations in wireless MIMO communication systems, IEEE Journal on Selected Areas in Communications, 21, 5, pp. 819-828, (2003)
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