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arXiv 1902.08072eess.SP
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具有天线选择的辐射效率感知的高移动性大规模多输入多输出

Radiation Efficiency Aware High-Mobility Massive MIMO with Antenna Selection

Zhinan Hu, Weile Zhang

摘要:

高移动性无线通信在过去几年中受到了广泛的关注。在本文中,我们考虑角域多普勒频移补偿方案,以减少从高速终端(HST)到基站(BS)的高移动性上行链路的信道时变。我们建议在保持辐射效率的约束下,通过天线加权来最小化多普勒扩展。利用序贯参数凸逼近(SPCA)算法解决上述非凸问题。此外,为了节省RF链,我们进一步开拓了高移动性无线通信的天线选择的想法。仿真结果验证了所提出的研究的有效性。

英文摘要:

High-mobility wireless communications have received a lot of attentions in the past few years. In this paper, we consider angle-domain Doppler shifts compensation scheme to reduce the channel time variation for the high-mobility uplink from a high-speed terminal (HST) to a base station (BS). We propose to minimize Doppler spread by antenna weighting under the constraint of maintaining radiation efficiency. The sequential parametric convex approximation (SPCA) algorithm is exploited to solve the above non-convex problem. Moreover, in order to save the RF chains, we further exploit the idea of antenna selection for high-mobility wireless communications. Simulations verify the effectiveness of the proposed studies.

机构、总结、中文摘要均由AI分析而来,可能存在错误,请以论文正文为准。

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