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MIMO-OFDM系统中机会波束成型技术的性能 被引量：1

Performance of opportunistic beamforming in MIMO-OFDM systems
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摘要 未来移动通信系统广泛将多输入输出(MIMO)和正交频分复用(OFDM)技术相结合,以提高系统数据速率和频谱利用率。在MIMO-OFDM系统中采用机会波束成型(Opportunistic Beamforming)技术,可以人工地将用户信道变换为快衰落的信道,使得系统吞吐率最大化。通过分析了MIMO-OFDM系统中机会波束成型多用户分集系统的系统结构和系统性能,对接收端采用不同结构接收机对系统性能的影响做了比较。理论分析表明在MIMO-OFDM系统中使用机会波束成型技术可以提高系统吞吐率,数值仿真结果证明了理论分析方法和结论的正确性。 Combination of MIMO and OFDM will be extensively applied in future wireless communication systems to enhance data rate and to increases spectral efficiency. Opportunistic beamforming technology can change the user channel into fast fading channel for maximum system throughput. A detailed analysis is given on the system structure and the performance of opportunistic beamforming in MIMO-OFDM systems. The performance of different receiver structures are compared. Research findings show that opportunistic beamforming possesses remarkable performance in system throughput. Simulation results also suggest that the theoretical analysis method and conclusion are correct.
作者 朱佩佩
机构地区 南京邮电大学通信与信息工程学院
出处 《桂林电子科技大学学报》 2007年第4期263-266,共4页 Journal of Guilin University of Electronic Technology
关键词 多输入多输出 正交频分复用 机会波束成型 Multiple-Input Multiple-Output （MIMO） orthogonal frequency division multiplexing （OFDM） opportunistic beamforming （OBF）
分类号 TN929.5 [电子电信—通信与信息系统]
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参考文献9

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同被引文献11

  • 1卢光跃,邵朝,周诠.OFDM系统新的无损峰均值比降低方案[J].通信学报,2005,26(8):51-56. 被引量：7
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  • 7Lu Guangyue, WU P. PAPR reduction in OFDM based on weighted sum of cyelieally shifted sequences[C]. Proc. of 10th International OFDM-Workshop (InOWo'05), Humburg, Germany, 2005: 210-214.
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引证文献1

桂林电子科技大学学报
2007年 第4期

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