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一种结合频率扩展编码的空时码MIMO OFDM系统性能及实现 被引量：1

Performance and Implementation of a Space-Time Coded MIMO OFDM System Using Frequency Spread Coding
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摘要 该文利用MIMO OFDM系统中宽带信道的频率选择性衰落对不同窄带子载波上传输信号的不同影响,提出了一种结合频率扩展编码(FSC)的空时码设计。仿真结果表明,与其它的MIMO OFDM系统比较,该方法不仅可以有效地利用选择性信道内在的频率分集及保证系统频谱利用率,而且结构简单,容易实现。 In this paper, a space-time coded MIMO (Multiple-Input Multiple-Output) OFDM (Orthogonal Frequency Diversion Multiplexing) system using frequency spread coding is proposed based on the fact that the fading effects of the transmitted signals on each sub-carrier are different owing to the frequency-selective fading property. The simulation results indicate that the proposed scheme not only effectively exploits the inherent frequency diversity of the frequency-selective channel and maintains the spectrum efficiency of system, but also has a low complexity and is easy to realize compared to other MIMO OFDM systems.
作者 郑夏宇 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 《电子与信息学报》 EI CSCD 北大核心 2004年第11期1799-1804,共6页 Journal of Electronics & Information Technology
基金 国家863(2001AA123011)资助
关键词 MIMO OFDM 频率选择性衰落 空时码 频率扩展编码(FSC) MIMO, OFDM, Frequency-selective fading, Space-time coding, Frequency Spread Coding(FSC)
分类号 TN929.5 [电子电信—通信与信息系统]
  • 相关文献

参考文献10

  • 1Thoen S, Perre L V, Engels M, Man H D. Adaptive loading for OFDM/SDMA-based wireless networks. IEEE Trans. on Communications, 2001, 50(11): 1798-1810.
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  • 4Tarokh V, Jafarkhani H, Calderbank A R. Space-time block coding for wireless communications:performance result. IEEE Journal on Selected Areas in Communications, 1999, 17(3): 451-460.
  • 5BSlcskei H, Paulraj A J. Space-frequency coded MIMO-OFDM with variable multiplexing diversity tradeoff. IEEE Int. Conf. on Communications(ICC), Anchorage, Alaska, May 2003, vol.4:2837-2841.
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同被引文献6

  • 1Bolcskei H.MIMO-OFDM wireless systems: basics, per- spectives, and challenges[J].Wireless Communications,2006,13(4):31-37.
  • 2Liu Z Q, Xin Y, Giannakis G B.Space-time-frequency coded OFDM over frequency-selective fading channels[J]. IEEE Transactions on Signal Processing,2002, 50(10): 2465-2476.
  • 3Park Sang-Soon,Kim Han-Kyong,Baik Heung-Ki.A sim- ple STF-OFDM transmission scheme with maximum fre- quency diversity gain[C]//Proceedings of the 2004 Inter- national Symposium on Circuits and Systems,2004.
  • 4Al-Mahmoud M, Zoltowski M D.A novel approach to space-time-frequency coded MIMO-OFDM over frequency selective fading channels[C]//2010 IEEE International Conference on Acoustics Speech and Signal Processing (ICASSP), 2010: 2554-2557.
  • 5Liu Siyang, Luo Zhendong, Liu Yuanan, et al.Spreading code design for downlink space-time-frequency spread- ing CDMA[J].IEEE Transactions on Vehicular Technology, 2008,57(5) : 2933-2946;.
  • 6Steven M K.Fundamentals of statistical signal processing[M]. [S.1.]:Prentice Hall PTR, 1993.

引证文献1

电子与信息学报
2004年 第11期

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