Reduction of Peak-to-Average Power Ratio of Multicarrier Modulation Signals with Adaptive Companding Scheme

被引：1
|
作者：
Hou, Jun [1 ]
Zhao, Xiangmo [1 ]
Hui, Fei [1 ]
机构：
[1] Changan Univ, Sch Informat Engn, Xian 710064, Shaanxi, Peoples R China
来源：
KSII TRANSACTIONS ON INTERNET AND INFORMATION SYSTEMS | 2016年 / 10卷 / 07期
基金：
中国国家自然科学基金;
关键词：
Multicarrier modulation (MCM); companding; peak-to-average power ratio (PAPR); high power amplifier (HPA); PAPR REDUCTION; OFDM SYSTEMS; TRANSMISSION; TRANSFORM;
D O I：
10.3837/tiis.2016.07.014
中图分类号：
TP [自动化技术、计算机技术];
学科分类号：
0812 ;
摘要：
High peak-to-average power ratio (PAPR) of transmitted signals is a major drawback in Multicarrier modulation (MCM) systems. Companding transform is a well-known method to reduce the PAPR without restrictions on system parameters such as the number of subcarriers, frame format and constellation type. In this paper, a novel adaptive companding scheme, mainly focuses on compressing the large signals into the desirable distribution, is proposed to reduce the PAPR with low implementation complexity. In addition, formulas to calculate its PAPR and bit error rate (BER) performance are also derived. Simulation results confirm that the proposed scheme can achieve an effective tradeoff between PAPR reduction and BER performance by carefully choosing the companding parameter.
引用
收藏
页码：3117 / 3130
页数：14
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