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首页> 外文期刊>Mathematical Problems in Engineering >Generalized Beamforming Design for Cooperative MIMO Multirelay Networks with Infinite Constraints and Imperfect CSI
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Generalized Beamforming Design for Cooperative MIMO Multirelay Networks with Infinite Constraints and Imperfect CSI

机译：具有无限约束和不完善CSI的协作MIMO多中继网络的广义波束形成设计

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摘要

A generalized base station-relay-user equipment (BS-Relay-UE) beamforming design is investigated for a cooperative multiple-inputmultiple- output(MIMO) multirelay networks with imperfect channel state information (CSI). In order to minimize the worst-case mean square error (MSE) which is subject to a semi-infinite (SI) relay power constraints, a generalized optimal beamforming structure for the relay amplifying matrix is effectively proposed, and then the SI relay power constraints are converted into linear matrix inequalities (LMIs) version. In such conversion, the objective problem recasts as a decoupled biconvex semidefinite programming (SDP) one which can be efficiently solved by the proposed alternating algorithm. The system performance has been verified in terms of worst-case MSE using a set of qualitative analyses. The results show us that the proposed beamforming method outperforms the conventional schemes and can also effectively reduce the computational complexity when it is compared to the cutting-set schemes and also to the nonrobust ones.
机译：针对具有不完善信道状态信息（CSI）的协作多输入多输出（MIMO）多中继网络，研究了一种通用的基站中继用户设备（BS-Relay-UE）波束成形设计。为了最小化受到半无限（SI）中继功率限制的最坏情况均方误差（MSE），有效地提出了一种用于中继放大矩阵的广义最优波束形成结构，然后提出了SI中继功率限制转换为线性矩阵不等式（LMI）版本。在这种转换中，目标问题被重铸为解耦的双凸半定规划（SDP），可以通过提出的交替算法有效地解决该问题。使用一组定性分析，已根据最坏情况的MSE验证了系统性能。结果表明，所提出的波束成形方法优于常规方案，并且与切削集方案和非鲁棒方案相比，还可以有效地降低计算复杂度。

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  • 来源
    《Mathematical Problems in Engineering》 |2018年第3期|9797549.1-9797549.8|共8页
  • 作者

    Yu Haiyang; Duan Wei; Sun Qiang; Wang Xia; Wang Jue; Li Jun; Choi Jaeho;

  • 作者单位

    Nantong Univ, Sch Elect & Informat, Nantong 226019, Peoples R China;

    Nantong Univ, Sch Elect & Informat, Nantong 226019, Peoples R China;

    Nantong Univ, Sch Elect & Informat, Nantong 226019, Peoples R China;

    Nantong Univ, Sch Elect & Informat, Nantong 226019, Peoples R China;

    Nantong Univ, Sch Elect & Informat, Nantong 226019, Peoples R China;

    Guangzhou Univ, Sch Mech & Elect Engn, Guangzhou, Guangdong, Peoples R China;

    Chonbuk Natl Univ, CAIIT, Dept Elect Engn, Chonju, South Korea;

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