摘要
高的峰值平均功率比问题是OFDM系统的主要缺陷之一。现有的降低峰均比技术中有些算法虽能有效降低信号的峰均比,但是需要很大的计算量,实际应用中难以实现。通过对遗传算法和模拟退火算法优势与不足的分析比较,首次引入了遗传模拟算法(SAGA)来解决OFDM系统峰均比过高的问题,通过仿真实验证明,该算法能够进一步降低OFDM系统的PAPR值。
One of the main disadvantages of OFDM systems is the High Peak-to-Average Power Ratio （PAPR） Problem. Some Algorithms are effective to reduce the PAPR in the PAPR reduction techniques at present, but it is hard to put into effect because of its huge calculation. Based on genetic algorithm and simulated annealing algorithm advantages and disadvantages of comparative analysis, the genetic algorithm （SAGA） is introduced for the first time to solve the problem of system than high peak, through the simulation experiments show that the algorithm can reduce the value of the system further.
出处
《电子设计工程》
2014年第7期140-142,145,共4页
Electronic Design Engineering
