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A Novel Non-Equidifferent Optical APPM Mapping Scheme for Strong Turbulent Atmospheric Channel

ISSN号：1673-5447
期刊名称：China Communications
时间：2015.3
页码：35-42
分类：TN929.12[电子电信—通信与信息系统;电子电信—信息与通信工程] O175.26[理学—数学;理学—基础数学]
作者机构：[1]School of Electronic Engineering, State Key Laboratory of Information Photonics and Optical Communications, Beijing University of Posts and Telecommunications (BUPT), Beijing 100876, China, [2]Shandong Police Training College, Jinan 250000, China
相关基金：financial supports from National High Technology 863 Program of China（No.2012AA011304）; National International Technology Cooperation（No.2012DFG12110）; National NSFC（No.61275158/61201151/61275074）; Beijing Nova Program（ No.Z141101001814048）; Beijing Excellent Ph.D.Thesis Guidance Foundation（No.20121001302）; the Universities Ph.D.Special Research Funds（No.20120005110003）; the Fundamental Research Funds for the Central Universities with No.2014RC0203; Fund of State Key Laboratory of IPOC（BUPT）
相关项目：高速光通信中基于新型编码调制的变速率OFDM技术研究

作者： Zhang Qi|Tian Qinghua|Xu Peng|Xin Xiangjun|

关键词：解映射, 强湍流, 大气通道, 脉冲位置调制, 性能改进, 信噪比增益, 光通信系统, BER, APPM Mapping Turbulent atmospheric channel

中文摘要：

An optical Amplitude and Pulse Position Modulation(APPM) mapping scheme for strong turbulent atmospheric channel is proposed to optimize Bit Error Rate(BER) performance.In this scheme,a nonequidifferent amplitude series is designed based on quantitative BER analysis of the specific A×M APPM demapping procedures containing time slot selection and amplitude decision in selected time slot,which are different from traditional ones.Simulation results of 4×4,4×8 and 4×16 APPM show 4,3.4 and 6.9 d B SNR gain against traditional APPM scheme respectively.Thus significant BER performance improvement is achieved which helps to enhance reliability of freespace optical communication systems.

英文摘要：

An optical Amplitude and Pulse Position Modulation（APPM） mapping scheme for strong turbulent atmospheric channel is proposed to optimize Bit Error Rate（BER） performance.In this scheme,a nonequidifferent amplitude series is designed based on quantitative BER analysis of the specific A×M APPM demapping procedures containing time slot selection and amplitude decision in selected time slot,which are different from traditional ones.Simulation results of 4×4,4×8 and 4×16 APPM show 4,3.4 and 6.9 d B SNR gain against traditional APPM scheme respectively.Thus significant BER performance improvement is achieved which helps to enhance reliability of freespace optical communication systems.

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