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。
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.
出处
《光通信技术》
CSCD
北大核心
2011年第10期32-34,共3页
Optical Communication Technology
关键词
PAM/DMT
白光通信
升余弦窗
PAM/DMT
white light communication
ascending cosine window
