Mixed Quality of Service in Cell-Free Massive MIMO

被引：34

作者：

Bashar, Manijeh ^{[1
]}

Cumanan, Kanapathippillai ^{[1
]}

Burr, Alister G. ^{[1
]}

Hien Quoc Ngo ^{[2
]}

Poor, H. Vincent ^{[3
]}

机构：

[1] Univ York, Dept Elect Engn, York YO10 5DD, N Yorkshire, England

[2] Queens Univ Belfast, Sch Elect Elect Engn & Comp Sci, Belfast BT7 1NN, Antrim, North Ireland

[3] Princeton Univ, Dept Elect Engn, Princeton, NJ 08544 USA

来源：

IEEE COMMUNICATIONS LETTERS | 2018年 / 22卷 / 07期

基金：

美国国家科学基金会; 欧盟地平线“2020”;

关键词：

Cell-free massive MIMO; geometric programming; max-min SINR; QoS requirement;

D O I：

10.1109/LCOMM.2018.2825428

中图分类号：

TN [电子技术、通信技术];

学科分类号：

0809 ;

摘要：

A mixed quality-of-service (QoS) problem is investigated in the uplink of a cell-free massive multiple-input multiple-output system where the minimum rate of non-real time users is maximized with per user power constraints while the rates of the real-time users (RTUs) meet their target rates. The original mixed QoS problem is formulated in terms of receiver filter coefficients and user power allocations, which can iteratively be solved through two sub-problems, namely, receiver filter coefficient design and power allocation. Numerical results show that, while the rates of RTUs meet the QoS constraints, the 90% likely throughput improves significantly, compared with a simple benchmark scheme.

引用

页码：1494 / 1497

页数：4

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