摘要
This paper investigates the performance of multi-hop Free Space Optical(FSO) communications using serial Decode-and-Forward(DF) relay transmissions.A statistical model for the optical intensity fluctuation at the receiver due to the combined effects of atmospheric turbulence-induced fading,mis alignment fading and pass-loss is presented.Under given weather and mis alignment conditions,a closed-form analytical expression for the end-to-end outage probability of serial Decode-and-Forward(DF) multi-hop FSO communications is derived.Numerical results show that the serial DF multi-hop transmission is a promising technology to enhance the performance of FSO communications.Moreover,the derived analytical expression can provide close approximations to the simulation results.
This paper investigates the performance of multi-hop Free Space Optical(FSO) communications using serial Decode-and-Forward(DF) relay transmissions.A statistical model for the optical intensity fluctuation at the receiver due to the combined effects of atmospheric turbulence-induced fading,mis alignment fading and pass-loss is presented.Under given weather and mis alignment conditions,a closed-form analytical expression for the end-to-end outage probability of serial Decode-and-Forward(DF) multi-hop FSO communications is derived.Numerical results show that the serial DF multi-hop transmission is a promising technology to enhance the performance of FSO communications.Moreover,the derived analytical expression can provide close approximations to the simulation results.
基金
supported by National Key Basic Research Program of China(973 Program)under Grant No.2010CB328000
National Natural Science Foundation of China under Grant No.61073168,60972023,61102068
China Postdoctoral Science Foundation funded project under Grant No.20110490389
Research Fund of National Mobile Communications Research Laboratory,Southeast University under Grant No.2010A06
the Open Research Fund of National Mobile Communication Research Laboratory,Southeast University under Grant No.2010D01
National Science and Technology Important Special Project under Grant No.2010ZX03003-002,2010ZX03003-004
the Open research fund of the State Key Laboratory of Integrated Services Networks,Xidian University under Grant No.ISN12-11
NUAA Research Funding under Grant No.NS2011013
the Open Research Fund of State Key Laboratory of Advance Optical Communication Systems and Networks under Grant No.2008SH06
the Startup Fund of Nanjing University of Aeronautics and Astronautics and Fundation of Graduate Innovation Center in NUAA
