白光LED可见光无线通信系统的研究

摘要

White LED technology, combinated with the optical communication techonlogy, can construct the LED visible light wireless communication system. By the analysis of the LED white light communication channel, presented the advantage and disadvantages of OFDM technology, which can effectively resist multi-path interference, and the improved version of OFDM, that is the single carrier frequency division multiplex-ing(SC-OFDM) acciss technology. Simulated the experimetal data of complementary cumulative distribution function, and gave the comparison of the different modulation condition.%白光LED技术与可见光通信技术相结合,可以构建出LED可见光无线通信系统.通过对LED白光作为光源的室内可见光通信信道的分析,给出了能有效抵抗多径干扰的OFDM技术的优缺点,以及改进后的OFDM版本,即一种单载波频分复用(SC-OFDM)接入技术；模拟了互补累计分布函数的实验数据,给出了仿真后不同调制情况下的比较图.