OFDM System with Reduce Peak-to-Average Power Ratio Using Optimum Combination of Partial Transmit Sequences
In this paper, we propose a new peak-to-average power ratio (PAPR) reduction scheme of orthogonal frequency division multiplexing (OFDM) system, called invasive weed optimization (IWO) scheme, which considerably reduces the computational complexity with keeping the similar PAPR reduction performance compared with the conventional partial transmit sequences (PTS) scheme.PTS is a distortionless PAPR reduction technique, but its high search complexity for finding optimal phase factors must be reduced for usable applications.The proposed scheme is analytically and numerically evaluated for the OFDM system specified in the IEEE 802.16 standard.1WO based PTS is compared to different PTS schemes for PAPR reduction and search complexity performances.The simulation results show that the proposed IWO-based PTS method provides good PAPR reduction and bit error rate (BER) performances.
Orthogonal frequency division multiplexing Peak-to-average power ratio reduction Partial transmit sequence and Invasive weed optimization
Yung-Cheng Yao Ho-Lung Hung Jyh-Horng Wen
Department of Electrical Engineering, National Chung Cheng University, Taiwan Department of Electrical Engineering, Chienkuo Technology University, Taiwan Department of Electrical Engineering, Tunghai University, Taiwan
国际会议
4th international Conference,ICSI2013(第4届群体智能国际会议)
哈尔滨
英文
459-466
2013-06-12（万方平台首次上网日期，不代表论文的发表时间）