Adaptive Interleaving Method and its Application to Free Space Optical Communications through Atmospheric Turbulence Channel
Adaptive interleaving method implemented by a hybrid system is proposed to deal with burst errors caused by long and deep channel fades in free space optical communications (FSOC) through atmospheric turbulence.Actually,considerable memory can be saved by changing the interleaving depth at transmitter and receiver according to the updated burst information from channel estimator.Combining with error correcting codes,anti-burst performance of the proposed method is evaluated by simulations based on channel state information from laser transmission experiments over an 11.8 km urban link.Simulation results show that 1~2 or even higher orders of magnitude of a memory can be saved when comparing with the maximum memory interleaving.The results have proved that the cost of anti-burst performance can be minimized to 10% or even smaller by the adaptive interleaving method when joint use with error correcting codes.
Free Space Optical Communications (FSOC) Atmospheric Turbulence Adaptive Interleaving Light Intensity Scintillation Burst Error
Zhonghua Yang Qiwen Ran Jing Ma Liying Tan Shichen Wu Qingfeng liu Huixi Liao
National Key Laboratory of Tunable Laser Technology,Harbin Institute of Technology Harbin,China China Academy of Space Technology
国际会议
沈阳
英文
382-389
2012-07-27（万方平台首次上网日期，不代表论文的发表时间）