• 主题
高级搜索  >
历史搜索 清空历史
首页> 外文期刊>Applied optics >Performance analysis and optimal detector of wireless optical space-time shift keying over the Gamma-Gamma turbulence channel
【24h】

Performance analysis and optimal detector of wireless optical space-time shift keying over the Gamma-Gamma turbulence channel

机译：γ-Gamma湍流通道键入无线光学空间时移的性能分析和最优检测器

获取原文
获取原文并翻译 | 示例
           
页面导航
  • 摘要
  • 著录项
  • 相似文献
  • 相关主题

摘要

In this paper, an optical space-time shift-keying (OSTSK) scheme based on the space-time dispersion matrix block of orthogonal design and laser selection technology is proposed to improve the transmission bits per symbol (TBS) and bit error rate (BER) performance of the traditional optical space shift keying (OSSK). The average BER of OSTSK is investigated over the Gamma-Gamma channel and simulated using the Monte Carlo method. The results show that the proposed scheme has the highest TBS and best BER performance compared with OSSK and optical generalized space shift keying. In addition, we propose a threshold judgment orthogonal matching pursuit (TJ-OMP)-decoding algorithm near-optimal detector for the OSTSK scheme to reduce the computational complexity of the system. For the OSTSK system with N-t = 4 and N-r = 4, when the reasonable threshold is selected as theta = 1.5, the computational complexity of OSTSK-(TJ-OMP) is 74.3% lower than that of the OSTSK-maximum likelihood sequence detection (OSTSK-MLSD), while the signal-to-noise ratio of the OSTSK-(TJ-OMP) decreases by about 1.5 dB at BER = 1 x 10(-3). (C) 2021 Optical Society of America
机译：本文提出了一种基于正交设计的空时色散矩阵块和激光选择技术的光空时移键控（OSTSK）方案，以改善传统光空时移键控（OSSK）的每符号传输比特数（TBS）和误码率（BER）性能。研究了伽马-伽马信道上OSTSK的平均误码率，并用蒙特卡罗方法进行了模拟。结果表明，与OSSK和光学广义空间移位键控相比，该方案具有最高的TBS和最佳的误码性能。此外，我们还针对OSTSK方案提出了一种阈值判断正交匹配追踪（TJ-OMP）译码算法，以降低系统的计算复杂度。对于N-t=4和N-r=4的OSTSK系统，当合理阈值选择为θ=1.5时，OSTSK-（TJ-OMP）的计算复杂度比OSTSK最大似然序列检测（OSTSK-MLSD）低74.3%，而在误码率=1 x 10（-3）时，OSTSK-（TJ-OMP）的信噪比降低约1.5dB。（2021）美国光学学会

著录项

  • 来源
    《Applied optics》 |2021年第12期|共9页
  • 作者

    Zhang Yue; Wang Huiqin; Ma Xuemei; Zhao Li; Mao Yicong;

  • 作者单位

    Lanzhou Univ Technol Sch Comp &

    Commun Lanzhou 730050 Peoples R China;

    Lanzhou Univ Technol Sch Comp &

    Commun Lanzhou 730050 Peoples R China;

    Lanzhou Univ Technol Sch Foreign Languages Lanzhou 730050 Peoples R China;

    Xian Technol Univ Sch Elect Informat Engn Xian 710021 Peoples R China;

    Lanzhou Univ Technol Sch Comp &

    Commun Lanzhou 730050 Peoples R China;

  • 收录信息
  • 原文格式 PDF
  • 正文语种 eng
  • 中图分类 应用;
  • 关键词

相似文献

  • 外文文献
  • 中文文献
  • 专利
获取原文

客服邮箱：kefu@zhangqiaokeyan.com

京公网安备：11010802029741号 ICP备案号：京ICP备15016152号-6 六维联合信息科技 (北京) 有限公司©版权所有

  • 客服微信

  • 服务号