Probability Shaping FSO Transmission based on BWSIDM

ZHAO Lun; LIU Tiankai; LI Yitong; WU Tingwei; HU Zhili; XIONG Wenrui; GUO Lei

doi:10.13756/j.gtxyj.2026.260047

您当前的位置：

首页 >

文章列表页 >

Probability Shaping FSO Transmission based on BWSIDM

更新时间：2026-04-20

- Probability Shaping FSO Transmission based on BWSIDM
- Study on Optical Communications Issue 2, (2026)
- 作者机构：
  
  1.重庆邮电大学　通信与信息工程学院，重庆　400065
  2.喀什地区电子信息产业技术研究院，新疆　喀什　844000
  3.中国电子科技集团公司第五十四研究所　北京研发中心，北京　100043
  4.东北大学　计算机科学与工程学院，沈阳　110169
- 作者简介：
- 基金信息：
- DOI：10.13756/j.gtxyj.2026.260047
  CLC： TN929
- Received：10 February 2026，
  
  Revised：2026-02-28，
  
  Published：10 April 2026
- 稿件说明：
移动端阅览
赵伦，刘天凯，李依桐，等. 基于BWSIDM的概率整形FSO传输[J]. 光通信研究，2026(2): 260047.

Zhao L, Liu T K, Li Y T, et al. Probability Shaping FSO Transmission based on BWSIDM[J]. Study on Optical Communications, 2026(2): 260047.
赵伦，刘天凯，李依桐，等. 基于BWSIDM的概率整形FSO传输[J]. 光通信研究，2026(2): 260047. DOI： 10.13756/j.gtxyj.2026.260047.

Zhao L, Liu T K, Li Y T, et al. Probability Shaping FSO Transmission based on BWSIDM[J]. Study on Optical Communications, 2026(2): 260047. DOI： 10.13756/j.gtxyj.2026.260047.

摘要

目的

针对传统基于比特加权分布匹配（BWDM）的概率整形（PS）方案虽可提升系统抗湍流性能，但存在标志比特错误的问题，文章提出了一种基于比特加权和同步反转分布匹配（BWSIDM）的PS 16阶正交振幅调制（QAM）自由空间光（FSO）传输方案。

方法

在发送端，采用3位标志比特标记比特分组的反转状态，并引入并行分组的同步反转机制以降低标志比特开销（OH）；在接收端，通过标志比特中的多数比特值确定分组的反转状态，从而降低标志比特传输错误的概率。

结果

在不同湍流强度、传输距离及信道衰减条件下，基于BWSIDM的PS方案性能均优于基于BWDM的PS方案。在背靠背（BTB）传输中，对于56 Gbit/s 16QAM信号，当误码率（BER）分别为10

-3

和10

-4

时，BWSIDM与BWDM方案相比，光信噪比（OSNR）分别提升了0.99和1.05 dB。在弱湍流条件下的FSO传输中，当BER分别为10

-4

和5×10

-5

时，BWSIDM与BWDM方案相比，传输距离分别提升了约59.4和76.1 m。

结论

基于BWSIDM的PS方案不仅具有更强的抗噪声性能，还能有效提升大气湍流环境下FSO通信系统的传输距离与抗衰减性能，具有良好的应用前景。

Abstract

Objective

To address the problem that the traditional Probabilistic Shaping (PS) scheme based on Bit-Weighted Distribution Matching (BWDM) is vulnerable to flag bit errors despite improving the anti-turbulence performance of the system

this paper proposes a probabilistically shaped 16 Quadrature Amplitude Modulatio (QAM) Free-Space Optical (FSO) transmission scheme based on Bit-Weighted and Synchronous Inversion Distribution Matching (BWSIDM).

Methods

At the transmitter

three flag bits are used to mark the inversion state of each bit group

and a synchronous inversion mechanism for parallel groups is introduced to reduce the Overhead (OH) of flag bits. At the receiver

the inversion state of each group is determined by the majority value of the flag bits

thereby reducing the probability of transmission errors in the flag bits.

Results

The performance of the PS scheme based on BWSIDM is superior to that based on BWDM under different turbulence intensities

transmission distances

and channel attenuations. For Back-to-Back (BTB) transmission of 56 Gbit/s 16QAM signals

the Optical Signal-to-Noise Ratio (OSNR) of the BWSIDM scheme is improved by 0.99 and 1.05 dB compared with the BWDM scheme at Bit Error Rate (BER) of 10

-3

and 10

-4

respectively. For FSO transmission under weak turbulence conditions

the transmission distance of the BWSIDM scheme is increased by approximately 59.4 and 76.1 m relative to the BWDM scheme at BER of 10

-4

and 5×10

-5

respectively.

Conclusion

The PS scheme based on BWSIDM not only has stronger anti-noise performance but also effectively improves the transmission distance and anti-attenuation performance of the FSO communication system in an atmospheric turbulence environment

demonstrating the application prospects.

关键词

Keywords

references

Park G , Mai V , Lee H , et al . Free-Space Optical Communication Technologies for Next-Generation Cellular Wireless Communications [J ] . IEEE Communications Magazine , 2024 , 62 ( 3 ): 24 - 30 .

Chow C W . Optical Wireless Communication–Recent Progresses and Future Perspectives [J ] . Journal of Lightwave Technology , 2026 , 44 ( 3 ): 806 - 820 .

朱一鸣 , 林显浩 , 迟楠 , 等 . 面向5G/6G移动前传网络的关键技术 [J ] . 光通信研究 , 2025 ( 3 ): 240078 .

Zhu Y M , Lin X H , Chi N , et al . Key Technologies for 5G/6G Mobile Fronthaul Network [J ] . Study on Optical Communications , 2025 ( 3 ): 240078 .

Nguyen T V , Pham T V , Dang N T , et al . Performance of Generalized QAM/FSO Systems with Pointing Misalignment and Phase Error over Atmospheric Turbulence Channels [J ] . IEEE Access , 2020 , 8 : 203631 - 203644 .

Guiomar F P , Lorences-Riesgo A , Ranzal D , et al . Adaptive Probabilistic Shaped Modulation for High-Capacity Free-Space Optical Links [J ] . Journal of Lightwave Technology , 2020 , 38 ( 23 ): 6529 - 6541 .

Chen S , Liu B , Mao Y , et al . Secure Optical 3D Probabilistic Shaping CAP System based on Spherical Constellation Masking [J ] . IEEE Photonics Technology Letters , 2020 , 32 ( 18 ): 1171 - 1174 .

Kang W . A Nonbinary LDPC-Coded Probabilistic Shaping Scheme for a Rayleigh Fading Channel [J ] . Entropy , 2022 , 24 ( 11 ): 1649 .

Kong M , Shi J , Sang B , et al . 800-Gb/s/Carrier WDM Coherent Transmission over 2 000 km based on Truncated PS-64QAM Utilizing MIMO Volterra Equalizer [J ] . Journal of Lightwave Technology , 2022 , 40 ( 9 ): 2830 - 2839 .

程婧帆 , 蒋林 , 何星辰 , 等 . 基于四维分集辅助的分阶段截断概率整形调制格式 [J ] . 光学学报 , 2025 , 45 ( 22 ): 25 - 34 .

Cheng J F , Jiang L , He X C , et al . Four-Dimensional Set-Partitioning Assisted Staged Truncated Probabilistic Shaping Modulation Format Scheme [J ] . Acta Optica Sinica , 2025 , 45 ( 22 ): 25 - 34 .

Schulte P , Böcherer G . Constant Composition Distribution Matching [J ] . IEEE Transactions on Information Theory , 2016 , 62 ( 1 ): 430 - 434 .

Zhang L , Wang K , Wang C , et al . Demonstration of Real-Time DMT-WDM-PON Employing Probabilistic Shaping based on Intra-Symbol Bit-Weighted Distribution Matching [J ] . Journal of Lightwave Technology , 2024 , 42 ( 2 ): 532 - 540 .

Zheng T , Bian C , Uddin R , et al . Single-Stage Flip PAM-8 Signal Transmission for W-Band Wireless System [J ] . IEEE Photonics Technology Letters , 2026 , 38 ( 4 ): 275 - 278 .

Yu H , He H , Fan J , et al . A Novel Probabilistic Shaping PAM4 Employing Bit Weight Reconstruction for Optical Interconnection [J ] . IEEE Photonics Technology Letters , 2023 , 35 ( 20 ): 1123 - 1126 .

Zhang L , Yu J , Wang K , et al . Real-Time Intra-Symbol Two-Stage Bit-Class Distribution Matcher-based PS-64QAM DMT Transceiver for W-Band Wireless Transmission [J ] . Journal of Lightwave Technology , 2025 , 43 ( 4 ): 1759 - 1772 .

Views

下载量

CSCD

CNKI被引量

Alert me when the article has been cited

提交

Tools

Publicity Resources

Investigation of OOTFS with Hybrid-Mode Dual-Domain Index Modulation

Research on Probabilistic Shaping of Spiral Constellations in Visible Light Communication

Key Technologies and Future Prospects for High Availability of Satellite-Ground Laser Links

Measurement and Compensation of Laser Beam Wavefront Distortion in Atmospheric Environment

Key Technologies for 5G/6G Mobile Fronthaul Network

Related Author

CAO Minghua

PENG Qingbin

CHEN Dan

TANG Qihan

WANG Huiqin

WANG Zhen

GUO Xinyue

WANG Yue

Related Institution

School of Automation and Information Engineering, Xi’an University of Technology

School of Computer Science and Artificial Intelligence, Lanzhou University of Technology

School of Optical-Electrical and Computing Engineering, University of Shanghai for Science and Technology

State Key Laboratory of Information Photonics and Optical Communication, School of Electronic Engineering, Beijing University of Posts and Telecommunications

School of Opticaland Electronic Information, Huazhong University of Science and Technology

Address：3rd floor, Building 4, Fenghuo Science Park, Gaoxinsilu, East Lake New Technology Development Zone, Wuhan, Hubei Province, P.R.China Postal code：430205
Technical support is provided by Beijing Founder electronics co., LTD 鄂ICP备2022010197 鄂公网安备 42011202002092号
It is recommended to read the content of this site in Chrome&IE9+. Please switch to extreme mode in browser 360.
Cookies We use cookies to help provide and enhance our service and tailor content. By continuing, you agree to the use of cookies.
Total Visits：330363 Visits Today：329

⁰