【摘要】 将脉冲幅度调制/离散多音频调制(PAM-DMT)应用于白光LED通信系统中,提出了将时域加窗技术与PAM-DMT相结合的思想,并且加入了循环前缀和后缀,做了系统仿真。结果表明,此系统能够有效抑制多径效应对系统性能的影响,提高系统的频谱利用率,降低系统的误比特率。更多还原

【Abstract】 In this paper,the PAM-DMT technique is used in the white light LED communication system,proposed the thought of combining time-domain window technique and PAM-DMT,and cyclic prefix/suffix is also added to the system.Finally,simulated the performance of the system based on Matlab.The result shows this technique can improve multipath suppression,spectral efficiency and BER of system.更多还原