同频干扰下混合MUD-RF/FSO航空中继通信系统性能分析
Performance Analysis of Mixed MUD-RF/FSO Airborne Relay Communication System with Co-Channel Interference
- 电子学报 2021年49卷第10期 页码：1960-1968
- 作者机构：
空军工程大学信息与导航学院， 陕西西安 710077
- 作者简介：
[ "刘文亚 男，1996年出生于河南省杞县.现为空军工程大学信息与导航学院研究生.主要研究方向为航空激光通信、混合激光/微波通信技术. E-mail： 617642371@qq.com" ]
[ "王 翔（通信作者） 男，1984年出生于山西省太原市.博士.现为空军工程大学信息与导航学院讲师.从事空间激光信息技术，航空信息网络技术. E-mail: lleafwx626@126.com" ]
[ "赵尚弘 男，1964年出生于甘肃省临洮县.现为空军工程大学信息与导航学院教授，博士生导师.从事空间激光信息技术，航空信息网络技术. E-mail: zhaoshangh@aliyun.com" ]
[ "牟 迪 男，1996年出生于吉林省四平市.现为空军工程大学信息与导航学院研究生.主要研究方向为无人机激光通信、智能光通信技术.E-mail： 122992542@qq.com" ]
- 基金信息：陕西省自然科学基金(2020JQ-483)
DOI：10.12263/DZXB.20201123
中图分类号： TN929.1;收稿：2021-02-07，
修回：2021-07-04，
纸质出版：2021-10-25
- 稿件说明：
移动端阅览
刘文亚,王翔,赵尚弘等.同频干扰下混合MUD-RF/FSO航空中继通信系统性能分析[J].电子学报,2021,49(10):1960-1968.
LIU Wen-ya,WANG Xiang,ZHAO Shang-hong,et al.Performance Analysis of Mixed MUD-RF/FSO Airborne Relay Communication System with Co-Channel Interference[J].ACTA ELECTRONICA SINICA,2021,49(10):1960-1968.
刘文亚,王翔,赵尚弘等.同频干扰下混合MUD-RF/FSO航空中继通信系统性能分析[J].电子学报,2021,49(10):1960-1968. DOI： 10.12263/DZXB.20201123.
LIU Wen-ya,WANG Xiang,ZHAO Shang-hong,et al.Performance Analysis of Mixed MUD-RF/FSO Airborne Relay Communication System with Co-Channel Interference[J].ACTA ELECTRONICA SINICA,2021,49(10):1960-1968. DOI： 10.12263/DZXB.20201123.
摘要
为了建立同频干扰条件下的混合射频/自由空间光（Radio Frequency/Free Space optical
RF/FSO）航空中继通信系统链路精确模型，提出多用户分集（Multi-User Diversity
MUD）的航空平台RF/FSO混合链路性能分析方法.以独立且同分布的Nakagami-
m
衰落信道表征射频（Radio Frequency
RF）用户信号和同频干扰（Co-Channel Interference
CCI）信号信道；构建了指数Weibull分布大气湍流与Rayleigh分布指向误差的FSO信道传输模型；在电光转换中继节点采用解码转发协议降低噪声累积.基于系统端到端等价信噪比累积分布函数，获得了RF/FSO混合链路中断概率及平均误码率表达式.研究结果表明，采用相干二进制相移键控调制时，系统误码性能最优；可通过增加用户数的方式来减弱干扰信号的影响.
Abstract
In order to establish an accurate model of the hybrid radio frequency/free space optical(Radio Frequency/Free Space optical
RF/FSO) aviation relay communication system link under the condition of co-channel interference
a multi-user diversity(Multi-User Diversity
MUD) airborne platform RF/FSO hybrid link performance analysis method is proposed. The independent and identically distributed Nakagami-
m
fading channel is used to characterize the RF user signal and the co-channel interference(Co-Channel Interference
CCI) signal channel
while the FSO link between relay to destination is assumed to be affected by Exponentiated Weibull distributed atmospheric turbulence and the Rayleigh distributed pointing error. The decoding and forwarding protocol is adopted at the relay node to avoid accumulation of noise. Based on the cumulative distribution function of the system's end-to-end equivalent signal-to-noise ratio
the closed expressions for link outage probability and average bit error rate are derived. The research results show that when using coherent binary phase shift keying modulation
the system has the best error performance. The influence of interference signals can be reduced by increasing the number of users.
关键词
Keywords
references
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