OOFDM系统恒定吞吐量自适应调制算法  

An adaptive modulation algorithm for constant throughput of OOFDM systems

作　　者：刘佳[1] 邱绍峰[1] 

机构地区：[1]重庆邮电大学通信与信息工程学院,重庆400065

出　　处：《光通信研究》2011年第2期11-13,63,共4页Study on Optical Communications

摘　　要：在光通信系统中,光纤对系统性能影响较大。为了减小多模光纤的色散对光正交频分复用(OOFDM)系统性能的影响,阐述了一种新的基于恒定吞吐量的自适应调制算法,改进的算法与原始的恒定吞吐量的自适应调制算法相比,在系统误码率变化不大的情况下,算法的复杂度降低了,仿真结果证明改进算法是正确可行的。In optical communication systems,optical fibers have strong impacts on system properties.In order to minimize the effects of dispersion of multimode fibers on OOFDM system characteristics,a novel constant-throughput-based adaptive modulation algorithm is introduced.Compared with the original one,the improved algorithm is less complicated when the system BER remain not much changed.The simulation results indicate that the improved algorithm is corrects and feasible.

关 键 词：自适应调制 功率分配 多模光纤 正交频分复用 

分 类 号：TN914[电子电信—通信与信息系统]