多波束机会波束成形系统性能比较 |
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引用本文: | 吴杏芬,;宋荣方. 多波束机会波束成形系统性能比较[J]. 南京邮电学院学报(自然科学版), 2008, 0(6): 30-33 |
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作者姓名: | 吴杏芬, 宋荣方 |
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作者单位: | [1]南京邮电大学通信与信息工程学院,江苏南京210003; [2]东南大学移动通信国家重点实验室,江苏南京210096 |
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基金项目: | 国家重点基础研究发展计划(973计划)(2007CB310607)、国家自然科学基金(60572130)、江苏省高校自然科学研究计划重大项目(08KJD510001)、教育部高校博士点基金、东南大学移动通信国家重点实验室开放课题基金、江苏省青蓝工程基金资助项目 |
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摘 要: | 研究了在多输入单输出(MISO)系统中通过加大、加快信道的波动来提高多用户分集增益的机会波束成形技术,并在此基础上研究了在每个时隙中采用多个加权矢量的多波束机会波束成形技术,着重对它们的性能作了仿真比较。结果表明,多波束机会波束成形技术可以提高系统吞吐量。
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关 键 词: | 多波束 机会波束成形 多输入单输出 多用户分集 |
Perfomance Comparison of Multi-Beam Opportunistic Beamforming System |
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Affiliation: | WU Xing-fen, SONG Rong-fang(1. College of Communication and Information Engineering, Nanjing University of Posts and Telecommunications, Nanjing 210003,China;2. National Key Lab of Mobile Communications, Southeast University, Nanjing 210096, China) |
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Abstract: | The multi-user diversity technique by opportunistic beamforming which can induce larger and faster channel fluctuations in multiple-input-single-output (MISO) systems is studied. Furthermore, the multi-beam opportunistic beamforming by using multiple random weighting vectors in both pilot and/or data slot is investigated and the performance is compared. Simulation results show that the muhi-beam technique can improve the throughput of opportunistic beamforming systems. |
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Keywords: | Multi-beam Opportunistic beamforming MISO Muhiuser diversity |
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