激光技术, 2007, 31 (1): 0092, 网络出版: 2010-06-03
无线光DH－PIM与DPIM调制方式的性能研究
Performance study of optical wireless DH-PIM and DPIM
光通信 调制方式 误包率 传信率 optical communication modulation method packet error rate information transmission rate
摘要
为了解决目前无线光通信采用的调制方式误包率大、传信率低等问题，研究了双头脉冲间隔调制(DH－PIM)和数字脉冲间隔调制(DPIM)的性能。分析了DPIM和DH－PIM两种调制方式的符号结构，比较了二者的传信率以及给定模型下的误包率。仿真与分析结果表明，DH－PIM的传信率较高，适合于实时性要求较高的传输系统，而DPIM的平均发射功率低，误包率较小，适合于要求低功率或高可靠性的系统。
Abstract
The performances of dual-header pulse interval modulation(DH-PIM)and digital pulse interval modulation(DPIM)are analyzed for the high packet error rate and low information transmission rate of optical wireless communication modulations presently. After discussing their symbol structures,their packet error rates and information transmission rates are compared based on the given model. The simulation results show that DH-PIM with higher information transmission rate is fit for real-time transmission systems,while DPIM is fit for lower power or higher reliability systems for it's lower average power and packet error rate.
王红星, 朱银兵, 张铁英, 孙晓明. 无线光DH－PIM与DPIM调制方式的性能研究[J]. 激光技术, 2007, 31(1): 0092. WANG Hong-xing, ZHU Yin-bing, ZHANG Tie-ying, SUN Xiao-ming. Performance study of optical wireless DH-PIM and DPIM[J]. Laser Technology, 2007, 31(1): 0092.
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