摘要
OFDM作为无线通信领域极具优势的传输技术,其局限在于具有较高的峰值平均功率比(PAPR),容易导致发送端高功率放大器的非线性失真。峰值对消算法广泛用于多载波信号的峰均比抑制,但对于OFDM信号,这种方法会带来很高的计算复杂度。本文针对OFDM信号提出了一种简化的基于峰值对消的峰均比抑制技术,仿真结果验证了该算法可以取得更低的计算复杂度和良好的峰均比抑制效果。
OFDM is an attractive technique for wireless communication applications. However,OFDM sig- nals can result in significant distortion when transmitted through power amplifiers due to its high Peak-to- Average Power Ratio （PAPR）. The conventional Peak Cancellation method is widely used in PAPR reduction, but for OFDM signals, this method is of high complexity In this paper, a simplified Peak Cancellation method is proposed for OFDM signals which obtains a low computational complexity and equivalent performance in peak reduction.
出处
《中国传媒大学学报（自然科学版）》
2013年第1期57-61,共5页
Journal of Communication University of China：Science and Technology
