CAJ | 학술논문

为了抑制正交频分复用（OFDM）系统旁瓣,将自适应功率分配与子载波加权旁瓣抑制算法相结合,提出了一种基于误符号率约束的旁瓣抑制新算法,并分析其全局凸性。为了降低该算法复杂度,采取减少参与旁瓣抑制子载波数的策略,设计了一种次优算法。仿真实验结果表明,同现有的子动波加权（SW）算法相比,新算法具有明显的性能优势,且在相移键控系统（PSK）中不用传递边信息。
위료억제정교빈분복용（OFDM）계통방판,장자괄응공솔분배여자재파가권방판억제산법상결합,제출료일충기우오부호솔약속적방판억제신산법,병분석기전국철성。위료강저해산법복잡도,채취감소삼여방판억제자재파수적책략,설계료일충차우산법。방진실험결과표명,동현유적자동파가권（SW）산법상비,신산법구유명현적성능우세,차재상이건공계통（PSK）중불용전체변신식。
In order to suppress the sidelobe of Orthogonal Frequency Division Multiplexing（OFDM）system,the adaptive power allocation combined with Subcarrier Weighting sidelobe suppression method is employed,and a novel sidelobe suppression method based on symbol error rate constraint is proposed,where the optimality of this method is analyzed.To reduce the complexity of the algorithm,a suboptimal method is designed by reducing the number of subcarriers for the sidelobe suppression.Simulation results show that the proposed method has substantial performance improvement over SW algorithm and avoids conveying the weighting information in phase shift keying system.