Finite-Alphabet Wiener Filter Precoding for mmWave Massive MU-MIMO Systems
Finite-Alphabet Wiener Filter Precoding for mmWave Massive MU-MIMO Systems
复制标题
用于毫米波大规模 MU-MIMO 系统的有限字母维纳滤波器预编码
DOI:
10.1109/ieeeconf44664.2019.9048799
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发表时间:
2019
期刊:
影响因子:
--
通讯作者:
Studer, Christoph
中科院分区:
文献类型:
--
作者:
Castaneda, Oscar;Jacobsson, Sven;Durisi, Giuseppe;Goldstein, Tom;Studer, Christoph
Power consumption of multi-user (MU) precoding is a major concern in all-digital massive MU multiple-input multiple-output (MIMO) base-stations with hundreds of antenna elements operating at millimeter-wave (mmWave) frequencies. We propose to replace part of the linear Wiener filter (WF) precoding matrix by a finite-alphabet WF precoding (FAWP) matrix, which enables the use of low-precision hardware that consumes low power and area. To minimize the performance loss of our approach, we present methods that efficiently compute FAWP matrices that best mimic the WF precoder. Our results show that FAWP matrices approach infinite-precision error-rate and error-vector magnitude performance with only 3-bit precoding weights, even when operating in realistic mmWave channels. Hence, FAWP is a promising approach to substantially reduce power consumption and silicon area in all-digital mmWave massive MU-MIMO systems.
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DOI:
--
发表时间:
2019
期刊:
IEEE International Conference on Application-Specific Systems, Architectures, and Processors
影响因子:
--
作者:
Oscar Castañeda;Maria Bobbett;Alexandra Gallyas;Christoph Studer
通讯作者:
Christoph Studer
影响因子:
10.4
作者:
Dutta, Sourjya;Barati, N;Ramirez, David;Dhananjay, Aditya;Buckwalter, James F.;Rangan, Sundeep
通讯作者:
Rangan, Sundeep
影响因子:
16.4
作者:
Castaneda, Oscar;Jacobsson, Sven;Durisi, Giuseppe;Goldstein, Tom;Studer, Christoph
通讯作者:
Studer, Christoph
影响因子:
11.2
作者:
Larsson, Erik G.;Edfors, Ove;Marzetta, Thomas L.
通讯作者:
Marzetta, Thomas L.