Uneven Power Amplifier Shuffling for Space-Time Line Code Systems

被引：13

作者：

Joung, Jingon ^{[1
]}

Choi, Jihoon ^{[2
]}

机构：

[1] Chung Ang Univ, Sch Elect & Elect Engn, Seoul 06974, South Korea

[2] Korea Aerosp Univ, Sch Elect & Informat Engn, Goyang 10540, South Korea

来源：

IEEE ACCESS | 2018年 / 6卷

基金：

新加坡国家研究基金会;

关键词：

Space-time line code; power amplifier shuffling; asymmetric power amplifier; LIMITED FEEDBACK; CHANNEL ESTIMATION; MASSIVE MIMO; PERFORMANCE ANALYSIS; RATIO TRANSMISSION; DIVERSITY; SINGLE; ALGORITHM; CRITERION; SCHEME;

D O I：

10.1109/ACCESS.2018.2875146

中图分类号：

TP [自动化技术、计算机技术];

学科分类号：

0812 ;

摘要：

In this paper, a novel power amplifier (PA) shuffling method is proposed for a space-time line code (STLC) system with uneven PA gains. The proposed method is composed of pre-shuffling and post-shuffling, which represent the assignment of STLC symbols to PAs and the allocation of PAs to transmit antennas, respectively. Through these shuffling procedures, the proposed scheme matches the larger gain PA to the larger effective channel gain with STLC in order to maximize the STLC decoding signal-to-noise ratio (SNR). A theoretical analysis provides a formula to compute the decoding SNR, and it is shown through numerical simulations that the proposed PA shuffling method can significantly improve the performance of conventional STLC systems, regardless of the channel state information uncertainty, especially when the number of transmit antennas is large.

引用

页码：58491 / 58500

页数：10

共 45 条

[1] Performance Analysis of Maximum Ratio Combining with Imperfect Channel Estimation in the Presence of Cochannel Interferences [J].