Power Amplifiers in Cable Access Network

被引：6
|
作者：
Ren, Zhixiong [1 ]
Si, Xiaoshu [1 ]
Ouyang, Tao [1 ]
机构：
[1] Huawei Technol, Access Network Technol Res, Wuhan 430070, Hubei, Peoples R China
来源：
2019 IEEE TOPICAL CONFERENCE ON RF/MICROWAVE POWER AMPLIFIERS FOR RADIO AND WIRELESS APPLICATIONS (PAWR) | 2019年
关键词：
GaN; cable television (CATV); data over cable service interface specification (DOCSIS); power amplifiers (PAs);
D O I：
10.1109/pawr.2019.8708738
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：
Cable access network as a kind of wireline communication is very different from ubiquitous wireless counterparts. In the newest standard i.e., Data-Over-Cable System Interface Specification (DOCSIS) version 3.1, large bandwidth (5*192MHz), orthogonal frequency division multiplexing (OFDM) and higher-order QAM modulation (4096-QAM) are simultaneously used for > 10 Gbps downstream (DS) data rate, which poses significant challenges in the design of power amplifiers (PAs) in Cable network, especially high-efficiency requirement. This paper reviews the PA realization in Cable industry and the possibility of two common efficiency techniques including load-and supply-modulations to be used in Cable DS PA. Digital pre-distortion (DPD) as a famous linearization technique can be applied to Cable PA with the availability of advanced ADC & DAC, which is proven in this paper.
引用
收藏
页码：1 / 3
页数：3
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