A Low-Complexity Multiuser Adaptive Modulation Scheme for Massive MIMO Systems

被引：13

作者：

Zhou, Yuehao ^{[1
]}

Zhong, Caijun ^{[1
]}

Jin, Shi ^{[2
]}

Huang, Yongming ^{[2
]}

Zhang, Zhaoyang ^{[1
]}

机构：

[1] Zhejiang Univ, Inst Informat & Commun Engn, Hangzhou 310058, Zhejiang, Peoples R China

[2] Southeast Univ, Natl Mobile Commun Res Lab, Nanjing 210018, Peoples R China

来源：

IEEE SIGNAL PROCESSING LETTERS | 2016年 / 23卷 / 10期

基金：

中国国家自然科学基金;

关键词：

Adaptive modulation; massive MIMO; power control; zero-forcing; AVERAGE BER CONSTRAINTS; DIVERSITY;

D O I：

10.1109/LSP.2016.2601932

中图分类号：

TM [电工技术]; TN [电子技术、通信技术];

学科分类号：

0808 ; 0809 ;

摘要：

A novel low-complexity multiuser adaptive modulation (MAM) scheme is proposed for uplink massive multiple input and multiple output systems with zero-forcing detection, which requires only slow-varying large-scale shadowing information for the users. Closed-form expressions are derived for the average spectral efficiency (ASE) and bit error outage (BEO). In addition, for MAM with joint power control, optimal power adaptation strategy and switching thresholds are obtained. Compared with the conventional fast adaptive modulation, which requires fast-varying small-scale fading information, the proposed MAM scheme achieves similar ASE performance with slight increase in BEO.

引用

页码：1464 / 1468

页数：5

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