| Title | Acquisition probability analysis of ultra-wide FOV acquisition scheme in optical links under impact of atmospheric turbulence |
| Authors | Tu, Bo Liu, Lu Liu, Yihui Jin, Ye Tang, Junxiong |
| Affiliation | Peking Univ, Sch Elect Engn & Comp Sci, State Key Lab Adv Opt Commun Syst & Networks, Beijing 100871, Peoples R China. Peking Univ, Sch Elect Engn & Comp Sci, State Key Lab Adv Opt Commun Syst & Networks, POB 100-871, Beijing 100871, Peoples R China. |
| Keywords | COMMUNICATION LINK DENSITY-FUNCTION SCINTILLATION IRRADIANCE RICIAN SYSTEM |
| Issue Date | 2013 |
| Publisher | applied optics |
| Citation | APPLIED OPTICS.2013,52,(14),3147-3155. |
| Abstract | Reliable data transmission in optical wireless communication is on the premise of the successful establishment of the optical link. In this paper, we propose an ultra-wide field-of-view (FOV) acquisition scheme, which combines the fisheye lens and Voigt anomalous dispersion optical filter (VADOF) to achieve rapid establishment of wireless optical links. Furthermore, the ultra-wide FOV signal-receiving model for this acquisition scheme is presented to analyze the receiving performance. This acquisition scheme utilizes the fisheye lens to obtain the ultra-wide FOV, not only simplifying the system architecture of the spatial acquisition, but also reducing the acquisition time; a VADOF with ultra-narrow-pass bandwidth is adopted to resist the strong background radiation induced by the ultra-wide FOV. For this ultra-wide FOV acquisition scheme, the mathematical model of long-term average acquisition probability (LTAAP) is derived based on the gamma-gamma (GG) distribution. In an atmospheric turbulence environment, the average signal count and the acquisition probability are both random variables; therefore, the probability density of the average signal count needs to be considered and LTAAP can be calculated based on the GG distribution. Comprehensive analysis and numerical results of the key parameters of this ultra-wide FOV acquisition scheme, such as LTAAP, false-alarm probability, signal-to-noise ratio, incident angle of beam, scintillation index, and acquisition threshold, provide an advantageous basis for the actual spatial acquisition system. (c) 2013 Optical Society of America |
| URI | http://hdl.handle.net/20.500.11897/291369 |
| ISSN | 1559-128X |
| DOI | 10.1364/AO.52.003147 |
| Indexed | SCI(E) EI PubMed |
| Appears in Collections: | 信息科学技术学院 区域光纤通信网与新型光通信系统国家重点实验室 |
