摘要
介绍了峰均比及特性,给出了多载波WCDMA系统中需要降低峰均比的理由。采用一种改进的二次限幅算法,通过仿真验证了算法的可行性。硬件平台测试表明,该算法具有实现复杂度低,降低峰均比的效果较好。
This paper describes the definition and characteristic of the peak-to-average power ratio （PAPR）,then gives the reason the multi-carrier wideband CDMA will reduce the PAPR.An improved clipping algorithm is adopted,and feasibility of this algorithm is validated by simulation.The experimental analysis shows that the algorithm has low complexity implement and has relatively good performance in PAPR reduce.
出处
《电子设计工程》
2009年第1期17-19,共3页
Electronic Design Engineering
基金
福建省重大专项基金项目(2007HZ003)
关键词
WCDMA
峰均比
邻道泄漏比
削峰
无线通信系统
载波
wideband code division multiple access（WCDMA）
peak-to-average power ratio（PAPR）
adjacent channel leak-age ratio （ACLR）
clipping
wireless communication system
carrier wave
