摘要
In this Letter, we investigate the packet error rate （PER） performance of digital pulse interval modulation （DPIM） for free-space optical （FSO） links under the combined effect of turbulence and pointing errors. The theoretical model is developed by considering the effect of some important parameters, including turbulence condition, beamwidth, receiver aperture size, jitter variance, data rate, transmitted optical power, etc. A closed-form average PER expression for DPIM is derived for this fading channel. The results of numerical simulation are further provided to verify the validation of our model. This work can be helpful for selecting DPIM in the FSO system design.
In this Letter, we investigate the packet error rate （PER） performance of digital pulse interval modulation （DPIM） for free-space optical （FSO） links under the combined effect of turbulence and pointing errors. The theoretical model is developed by considering the effect of some important parameters, including turbulence condition, beamwidth, receiver aperture size, jitter variance, data rate, transmitted optical power, etc. A closed-form average PER expression for DPIM is derived for this fading channel. The results of numerical simulation are further provided to verify the validation of our model. This work can be helpful for selecting DPIM in the FSO system design.
基金
This work was supported by the Shenzhen Municipal Science and Technology Plan Project （JC201105160592A, JCYJ20120613143649014 and JC201105160524A）, and National Natural Science Foundation of China （NSFC） （61205046, 11274083 and 61107036）.
