Joint Optimization of Subcarriers Allocation and Tone Reservation PAPR Reduction for OFDMA Systems

摘要：

　　In this paper,we consider the problem of resource allocation and high Peak-to-average Power Ratio (PAPR) for the downlink of an orthogonal frequency division multiplexing access (OFDMA) system.A joint optimization method for subcarriers allocation and Tone Reservation PAPR reduction is proposed,where a portion of subcarriers are reserved to reduce the PAPR.And then the adaptive subcarriers allocation technology is applied to the OFDMA systems to enhance the throughput.The proposed joint algorithm achieves better performance in PAPR reduction and total throughput than the other independent algorithms.The simulation results show that the proposed TR technique with adaptive subcarriers allocation in OFDMA systems can effectively reduce the PAPR.And subject to power,bit error rates (BER) and rate proportionality constraints,it also maximizes the throughput.

关键词： OFDMA PAPR Adaptive subcarriers allocation TR technique

作者: Limian Gao Gaojun Song Xiaofeng He Renze Luo

作者单位: School of Information Engineering, Nanchang HangKong University, Nanchang, Jiangxi, China School of Electrical Engineering and Information,Southwest Petroleum University, Chengdu, Sichuan, C

会议类型: 国际会议

会议名称: 2012 IEEE 14th International Conference on Communication Technology(2012年第十四届通信技术国际会议(ICCT 2012))

会议地点: 成都

会议语种:英文

页码: 1264-1268

在线出版日期: 2012-11-09（万方平台首次上网日期，不代表论文的发表时间）