基于马尔科夫模型的双站激光微波混合链路性能分析
Performance Analysis of Dual Ground Station Laser-Microwave Hybrid Links Based on Markov Model
- 电子学报 2024年52卷第2期 页码：468-476
- 作者机构：
1.西安理工大学自动化与信息工程学院,西安市无线光通信与网络研究重点实验室,陕西西安 710048
2.华侨大学厦门市移动多媒体通信重点实验室,福建厦门 361021
- 作者简介：
[ "邵军虎 男，1980年生，山西永济人.西安理工大学讲师.主要研究方向为差错控制编码技术. E-mail: jhshao@xaut.edu.cn" ]
[ "杜旭晓 女，1999年生，陕西渭南人.西安理工大学硕士研究生.主要研究方向为激光微波混合组网技术. E-mail: 1540585729@qq.com" ]
- 基金信息：国家自然科学基金青年基金(12104362);陕西省重点研发计划一般项目(2020GY-036);陕西省重点产业创新链项目(2017ZDCXL-GY-05-03);厦门市移动多媒体通信重点实验室（华侨大学）开放基金(HQUCOM17-02)
DOI：10.12263/DZXB.20220738
中图分类号： TN929.12;TN911.3收稿：2022-06-28，
修回：2022-08-29，
纸质出版：2024-02-25
- 稿件说明：
移动端阅览
邵军虎,杜旭晓,庞健,等.基于马尔科夫模型的双站激光微波混合链路性能分析[J].电子学报,2024,52(02):468-476.
SHAO Jun-hu, DU Xu-xiao, PANG Jian, et al.Performance Analysis of Dual Ground Station Laser-Microwave Hybrid Links Based on Markov Model[J].Acta Electronica Sinica, 2024, 52(02): 468-476.
邵军虎,杜旭晓,庞健,等.基于马尔科夫模型的双站激光微波混合链路性能分析[J].电子学报,2024,52(02):468-476. DOI：10.12263/DZXB.20220738
SHAO Jun-hu, DU Xu-xiao, PANG Jian, et al.Performance Analysis of Dual Ground Station Laser-Microwave Hybrid Links Based on Markov Model[J].Acta Electronica Sinica, 2024, 52(02): 468-476. DOI：10.12263/DZXB.20220738
摘要
针对气象变化对自由空间光（Free Space Optical，FSO）通信链路和毫米波射频（Radio Frequency，RF）通信链路可用率的影响问题，采用马尔科夫建模与稳态概率求解计算方法，分析不同天气条件下FSO/RF混合链路的双接收站分集与中断概率性能.基于FSO链路和RF链路的信道模型，采用有限状态马尔科夫链（Finite State Markov Chain，FSMC）分别对单双站FSO/RF混合链路的切换选择进行建模，推导得出不同参数和天气情况下系统稳态的中断概率表达式.数值计算结果表明，当中断概率达到10
-6
，雨雾天气链路距离为1~7 km时，双站FSO/RF混合链路相比单站可获得4~25 dB的增益.
Abstract
Aiming at the system availability problem of free space optical (FSO) link and millimeter wave radio frequency (RF) link under various meteorological conditions
multiple ground station diversity and system outage probability performance were investigated by using Markov model steady-state probability equilibrium method. Based on the channel models of FSO link and RF link
hybrid link selection finite state Markov chain (FSMC) was established for single and dual station scheme respectively. Then their outage probability expressions were derived and calculated under different system parameters and weather conditions. Numerical results show that at outage probability 10
-6
with link distance 1~7 km under rainy and foggy weather conditions
the dual ground station FSO/RF hybrid link can achieve 4~25 dB gain compared to single station case.
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references
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