摘要
论述了削峰技术(CFR,Crest Factor Reduction)、数字预失真(DPD,Digital PreDistortion)技术、发射带宽和DPA(Doherty PowerAmplifier)在现今无线基站(RRH,RemoteRadioHead)中的功能和他们之间的相互制约,以及诸如无线系统的数据吞吐量、系统功耗和频谱发射模板(SEM,Spectrum EmissionMask)这些制约因素对RRH系统性能的影响,并对近年来RRH系统发展过程中问题作了总结。
The roles of CFR,DPD,transmitting bandwidth and Doherty power amplifier in nowadays wireless base station（RRH） are described.And mutual influence and their influence to RRH system performance are discussed,such as throughput of wireless system,system power supply efficiency and SEM.The mutual-influence of these functional units is explored.The conclusion on RRH progress is summed in recent years.
出处
《电子信息对抗技术》
2012年第6期78-84,共7页
Electronic Information Warfare Technology
关键词
削峰技术
数字预失真
系统效率
信道质量指示
峰均比
crest factor reduction（CFR）
digital pre-distortion（DPD）
system efficiency
channel quality indicator（CQI）
peak to average（PAR）
