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2×2 X信道和PTP信道并存网络的自由度

郭倩倩 刘锋 曾连荪 覃闻铭

郭倩倩, 刘锋, 曾连荪, 等 . 2×2 X信道和PTP信道并存网络的自由度[J]. 北京航空航天大学学报, 2016, 42(11): 2501-2506. doi: 10.13700/j.bh.1001-5965.2015.0696
引用本文: 郭倩倩, 刘锋, 曾连荪, 等 . 2×2 X信道和PTP信道并存网络的自由度[J]. 北京航空航天大学学报, 2016, 42(11): 2501-2506. doi: 10.13700/j.bh.1001-5965.2015.0696
GUO Qianqian, LIU Feng, ZENG Liansun, et al. Degrees of freedom of networks with coexistence of 2×2 X channel and point-to-point channel[J]. Journal of Beijing University of Aeronautics and Astronautics, 2016, 42(11): 2501-2506. doi: 10.13700/j.bh.1001-5965.2015.0696(in Chinese)
Citation: GUO Qianqian, LIU Feng, ZENG Liansun, et al. Degrees of freedom of networks with coexistence of 2×2 X channel and point-to-point channel[J]. Journal of Beijing University of Aeronautics and Astronautics, 2016, 42(11): 2501-2506. doi: 10.13700/j.bh.1001-5965.2015.0696(in Chinese)

2×2 X信道和PTP信道并存网络的自由度

doi: 10.13700/j.bh.1001-5965.2015.0696
基金项目: 国家自然科学基金(61271283,61472237,61401270);交通运输部应用基础研究项目(2015329810030);上海市教委科研创新基金(14YZ113)
详细信息
    作者简介:

    郭倩倩,女,硕士研究生。主要研究方向:无线通信与网络。E-mail:1491538684@qq.com;刘锋,男,博士,讲师。主要研究方向:无线通信与网络。Tel.:021-38282863,E-mail:liufeng@shmtu.edu.cn;曾连荪,男,教授,硕士生导师。主要研究方向:定位导航系统Tel.:021-38282863,E-mail:lszeng@shmtu.edu.cn

    通讯作者:

    刘锋,Tel.:021-38282863,E-mail:liufeng@shmtu.edu.cn

  • 中图分类号: TN929.5

Degrees of freedom of networks with coexistence of 2×2 X channel and point-to-point channel

  • 摘要: 自由度(DOF)是一个空间复用概念,是在多天线系统中引入的,体现了无线信道对空间资源的利用效率。在认知无线电中,由于主、次网络会相互干扰,从而会降低DOF。本文主要研究的是2×2 X信道(XC)和点对点(PTP)信道并存时网络的DOF。研究结论也适合于XC优先于PTP信道的情况。在已知发送端信道状态(CSI)信息的前提下,基于符号扩展模型,利用渐进干扰对齐方法给出了对应的信号处理方案,并证明当n趋于无穷大时,自由度内界可达5/3。利用传播时延模型示范了其可达性。此外,分析了DOF上界。

     

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出版历程
  • 收稿日期:  2015-10-27
  • 修回日期:  2015-12-18
  • 网络出版日期:  2016-11-20

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