光通信研究Issue(4)：56-59,4.DOI:10.13756/j.gtxyj.2016.04.017
一种降低MIMO-O FDM系统PAPR的低复杂度SLM算法
A Low Complexity SLM Algorithm for Reducing PAPR of MIMO-OFDM System
摘要
Abstract
In this paper,we propose a new method to reduce the computational complexity of the conventional Selective Map-ping (SLM)algorithm in the Multiple Input Multiple Output Orthogonal Frequency Division Multiplexing (MIMO-OFDM) system.The original frequency domain signals are first divided into real and imaginary parts.Then the two parts are operated by different phase rotation respectively.The corresponding time domain signals are finally obtained by using inverse fast Fou-rier transform operations.It can produce more candidates with different Peak to Average Power Ratio (PAPR)by different combination of real and imaginary parts in antennas.The simulation results show that the proposed method can reduce the PA-PR of MIMO-OFDM signals effectively.In addition,compared with conventional SLM algorithm,the proposed method can reduce the algorithm computation complexity significantly.关键词
多输入多输出正交频分复用/选择性映射/峰均功率比/计算复杂度Key words
MIMO-OFDM/SLM/PAPR/computational complexity分类
信息技术与安全科学引用本文复制引用
李玮,刘雲雲,杨霖..一种降低MIMO-O FDM系统PAPR的低复杂度SLM算法[J].光通信研究,2016,(4):56-59,4.基金项目
国家自然科学基金资助项目(61370012) （61370012）
