Large System Performance and Distributed Scheme of Downlink Beamforming in F-RANs With Distributed Antennas

Large System Performance and Distributed Scheme of Downlink Beamforming in F-RANs With Distributed Antennas
复制标题

分布式天线 F-RAN 中的大系统性能和下行链路波束成形的分布式方案

DOI:
10.1109/access.2019.2903881
复制
发表时间:
2019-03
期刊:
影响因子:
3.9
通讯作者:
You Xiaohu
You Xiaohu
中科院分区:
计算机科学3区
文献类型:
--
作者:
Zhu Pengcheng;Li Jiamin;Wang Dongming;You Xiaohu

文献摘要

参考文献

被引文献

相似文献

研究了分布式天线下雾天无线接入网下行波束赋形的性能。无线信道被建模为Rician衰落。我们分析的信号与干扰加噪声比(SINR)和数据速率的最大比传输(MRT)和正则化迫零(RZF)波束形成器在大系统的限制,其中的天线和用户的数量趋于无穷大,而保持一个固定的比率的渐近行为。在一些实际的F-RAN环境中,难以执行集中式处理和全局共享信道状态信息(CSI),因此分布式波束成形方案受到关注。因此,我们提出了本地迫零(ZF)波束形成器,仅依赖于本地CSI。仿真结果表明,在有限的系统规模下,MRT和RZF的渐近结果是准确的,局部ZF波束形成器在CSI共享复杂度和干扰控制能力方面提供了MRT和RZF之间的折衷。
This paper addresses the performance of downlink beamforming in fog radio access networks (F-RANs) with distributed antennas. The wireless channel is modeled as Rician fading. We analyze the asymptotic behavior of the signal-to-interference-plus-noise ratio (SINR) and the data rate of maximum ratio transmission (MRT) and regularized zero-forcing (RZF) beamformers in the large system limit, where the numbers of antennas and users go to infinity while keeping a fixed ratio. In some practical F-RAN environment, it is difficult to perform centralized processing and share channel state information (CSI) globally, so distributed beamforming schemes are of interest. Therefore, we propose the local zero-forcing (ZF) beamformer that relies only on local CSI. The simulation results show that the asymptotic results of MRT and RZF are accurate for finite system size, and the local ZF beamformer provides a tradeoff between MRT and RZF in terms of CSI sharing complexity and interference control ability.
分布式 MIMO 系统的频谱效率
DOI: 10.1109/jsac.2013.131012
发表时间: 2013-09
影响因子: 16.4
作者:
Dongming Wang;Jiangzhou Wang;Xiaohu You;Yan Wang;Ming Chen;Xiaoyun Hou
通讯作者: Xiaoyun Hou
DOI: 10.1109/tit.2011.2177770
发表时间: 2010-06
影响因子: 2.5
作者:
R. Zakhour;S. Hanly
通讯作者: R. Zakhour;S. Hanly
MISO 干扰通道的协调波束形成:复杂性分析和高效算法
DOI: 10.1109/tsp.2010.2092772
发表时间: 2011-03
影响因子: 5.4
作者:
Liu, Ya-Feng;Dai, Yu-Hong;Luo, Zhi-Quan
通讯作者: Luo, Zhi-Quan
DOI: 10.1109/tit.2011.2178230
发表时间: 2010-12
影响因子: 2.5
作者:
Hoon Huh;A. Tulino;G. Caire
通讯作者: Hoon Huh;A. Tulino;G. Caire
DOI: --
发表时间: 2017
期刊: --
影响因子: --
作者:
Emil Björnson;Mats Bengtsson;Björn E. Ottersten
通讯作者: Emil Björnson;Mats Bengtsson;Björn E. Ottersten