Survey of Large-Scale MIMO Systems

Survey of Large-Scale MIMO Systems
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大规模 MIMO 系统综述

DOI:
10.1109/comst.2015.2425294
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发表时间:
2015-04
影响因子:
35.6
通讯作者:
Hanzo Lajos
Hanzo Lajos
中科院分区:
计算机科学1区
文献类型:
--
作者:
Mei Jie;Shao Bin;Xiang Wei;Hanzo Lajos

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智能手机和平板电脑的激增带来的电信流量增长超过了无线通信网络容量的增长。此外,它还会导致二氧化碳排放量大幅增加。作为一种强有力的对策,在满秩信道矩阵的情况下,MIMO技术潜在地能够在相应地增加天线数量的情况下线性地增加容量或降低发射功率。因此,最近提出的大规模MIMO(LS-MIMO)系统的概念引起了广泛的研究关注,并被认为是下一代无线通信网络的一种很有前途的技术。因此,本文综述了LS-MIMO系统的研究现状。首先,我们讨论了LS-MIMO信道的测量和建模。然后,对一些典型的应用场景进行了归类和分析。文中还详细介绍了物理层和网络层的关键技术。最后,我们总结了一系列的挑战和未来的研究课题。
The escalating teletraffic growth imposed by the proliferation of smartphones and tablet computers outstrips the capacity increase of wireless communications networks. Furthermore, it results in substantially increased carbon dioxide emissions. As a powerful countermeasure, in the case of full-rank channel matrices, MIMO techniques are potentially capable of linearly increasing the capacity or decreasing the transmit power upon commensurately increasing the number of antennas. Hence, the recent concept of large-scale MIMO (LS-MIMO) systems has attracted substantial research attention and been regarded as a promising technique for next-generation wireless communications networks. Therefore, this paper surveys the state of the art of LS-MIMO systems. First, we discuss the measurement and modeling of LS-MIMO channels. Then, some typical application scenarios are classified and analyzed. Key techniques of both the physical and network layers are also detailed. Finally, we conclude with a range of challenges and future research topics.
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