Performance of a PPM hard decision-based ARQ-FSO system in a weak turbulence channel  

作　　者：尹建军 刘宏展 黄蓉 高争光 韦中超 

机构地区：[1]Cuangdong Provincial Key Laboratory of Nanophotonie Functional Materials and Devices, South China Normal University, Guangzhou 510006, China

出　　处：《Chinese Optics Letters》2017年第6期1-6,共6页中国光学快报（英文版）

基　　金：supported by the National Natural Science Foundation of China(No.61475049);the National Basic Research Program of China(No.2013CB29204)

摘　　要：We present an automatic repeat request（ARQ） free space optical（FSO） system, which consists of a pulse position modulation（PPM） hard decision and an ARQ. The new ARQ＇s data error detection is based on a PPM hard decision＇s results and can eliminate the traditional ARQ information redundancy. The results of the numerical simulation have a good agreement with theoretical analysis and show that the ARQ-FSO system can effectively improve the bit error rate（BER） performance of the direct hard decision PPM system. Additionally, the proposed system significantly improves the average throughput efficiency compared to traditional ARQ systems.These characteristics make the ARQ-FSO system suitable for application in low BER and complexity FSO scenarios.We present an automatic repeat request（ARQ） free space optical（FSO） system, which consists of a pulse position modulation（PPM） hard decision and an ARQ. The new ARQ＇s data error detection is based on a PPM hard decision＇s results and can eliminate the traditional ARQ information redundancy. The results of the numerical simulation have a good agreement with theoretical analysis and show that the ARQ-FSO system can effectively improve the bit error rate（BER） performance of the direct hard decision PPM system. Additionally, the proposed system significantly improves the average throughput efficiency compared to traditional ARQ systems.These characteristics make the ARQ-FSO system suitable for application in low BER and complexity FSO scenarios.

关 键 词：turbulence throughput redundancy eliminate request scenarios transmitter symbol decoding correction 

分 类 号：TN929.1[电子电信—通信与信息系统]