Preparing Linearity and Efficiency for 5G: Digital Predistortion for Dual-Band Doherty Power Amplifiers with Mixed-Mode Carrier Aggregation
Preparing Linearity and Efficiency for 5G: Digital Predistortion for Dual-Band Doherty Power Amplifiers with Mixed-Mode Carrier Aggregation
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发表时间：
2017
影响因子：
3.6
通讯作者：
N. Kelly;Wenhui Cao;A. Zhu
中科院分区：
文献类型：
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作者：
N. Kelly;Wenhui Cao;A. Zhu
随着新的无线通信标准寻求满足当今终端用户的无数需求，传统的RF发射机链面临着一系列不断发展的挑战。为了最大化信息吞吐量，信号带宽不断增长。例如，在第四代高级长期演进（也称为LTE-A）中，为了满足1 Gb/s下行链路和500 Mb/s上行链路速度的既定目标，引入了载波聚合（CA）技术，将最大传输带宽扩展到100 MHz [1]。随着未来十年移动的流量预计将增加1,000倍，未来的第五代（5G）系统将继续对传输链提出新的要求。
As new wireless communication standards seek to meet the myriad demands of today's end users, the traditional RF transmitter chain is faced with an evolving set of challenges. To maximize information throughput, signal bandwidths are continuously growing. In fourth-generation longterm evolution-advanced (also called LTE-A), for example, to meet the stated goals of 1-Gb/s downlink and 500-Mb/s uplink speeds, the carrier aggregation (CA) technique was introduced, expanding the maximum transmit bandwidth up to 100 MHz [1]. With mobile traffic expected to increase by a factor of 1,000 over the next decade, future fifth-generation (5G) systems will continue to place new demands on the transmit chain [2].