Choosing the Optimal Clipping Ratio for Clipping and Filtering PAR-Reduction Scheme in OFDM
Clipping and Filtering on the Oversampled signal samples (CFO) is a simply and effective peak-to-average power ratio (PAR) reduction method for OFDM signal. However, the PARreduction performance and the bit error ratio (BER) performance of CFO are conflicting with each other. An analysis framework is proposed to select the optimum clipping ratio (CR) which optimizes the consumed power-to-noise ratio (SNRC). Simulation shows CFO with the optimum CR can obtain about 2dB SNRC gain compared to the original OFDM signal in the AWGN channel.
Hua Yu Gang Wei
School of Electronic and Information Engineering, South China University of Technology, Guangzhou 510640, China
国际会议
上海
英文
2007-09-21（万方平台首次上网日期，不代表论文的发表时间）