通信学报 ›› 2017, Vol. 38 ›› Issue (7): 131-140.doi: 10.11959/j.issn.1000-436x.2017153

• 学术论文 • 上一篇    下一篇

户外无线光通信中湍流信道下的分组马尔可夫叠加传输研究

朱锦顺1,马啸2,3   

  1. 1 中山大学电子与信息工程学院,广东 广州 510006
    2 中山大学数据科学与计算机学院,广东 广州 510006
    3 中山大学广东省信息安全重点实验室,广东 广州 510006
  • 修回日期:2017-04-21 出版日期:2017-07-01 发布日期:2017-08-25
  • 作者简介:朱锦顺(1987-),男,湖南邵阳人,中山大学博士生,主要研究方向为信道编码技术、编码调制技术、无线光通信。|马啸(1968-),男,河南焦作人,博士,中山大学教授、博士生导师,主要研究方向为信息与编码理论、编码调制技术、无线通信、光通信等。
  • 基金资助:
    国家自然科学基金重大研究计划培育基金资助项目(91438101);广东省自然科学基金重大基础研究培育基金资助项目(2016A030308008)

Block Markov superposition transmission over turbulence channels in outdoor optical wireless communication

Jin-shun ZHU1,Xiao MA2,3   

  1. 1 School of Electronics and Information Technology,Sun Yat-sen University,Guangzhou 510006,China
    2 School of Data and Computer Science,Sun Yat-sen University,Guangzhou 510006,China
    3 Guangdong Key Laboratory of Information Security Technology,Sun Yat-sen University,Guangzhou 510006,China
  • Revised:2017-04-21 Online:2017-07-01 Published:2017-08-25
  • Supported by:
    The Major Research Plan of the National Natural Science Foundation of China(91438101)

摘要:

基于精灵辅助等效系统,分析了分组马尔可夫叠加传输系统的性能下界,推导了精灵辅助系统误比特率的联合界。该联合界可用于解决误比特率(BER)很低时蒙特卡洛仿真难以获知系统错误性能的问题。仿真结果表明,在不同强度的湍流条件下,分组马尔可夫叠加传输系统在低误比特率区域的错误性能与精灵辅助下界贴合。精灵辅助等效系统的联合界与其仿真结果也贴合。在 BER=10-5时,记忆长度为 2 的分组马尔可夫叠加传输系统的性能与香农限的距离在1 dB以内。

关键词: 无线光通信, 湍流效应, 分组马尔可夫叠加传输, 联合界, Gamma-Gamma信道模型

Abstract:

Based on the equivalent genie-aided system,the bit-error rate of the block Markov superposition transmission system was analyzed and the union bound of the bit-error rate of the genie-aided system was derived.When the bit-error rate was extremely low at which the Monte Carlo simulation was time-consuming,the union bound could be adopted to evaluate the performance of the block Markov superposition transmission system.Simulations under turbulence conditions from weak to strong are performed which show that,in the low bit-error rate region,performance of the block Markov superposition transmission system matches well with the lower bound.It is also illustrated that the derived union bound matches well with Monte Carlo simulation result.At the BER of 10-5,block Markov superposition transmission system with transmission memory 2 performs within 1 dB away from the Shannon limit.

Key words: optical wireless communication, turbulence effect, block Markov superposition transmission, union bound, Gamma-Gamma channel model

中图分类号: 

No Suggested Reading articles found!