Enhancement of reliability and security in a time-diversity FSO/CDMA wiretap channel

Enhancement of reliability and security in a time-diversity FSO/CDMA wiretap channel
复制标题

增强时间分集 FSO/CDMA 窃听信道的可靠性和安全性

DOI:
10.1364/osac.2.001524
复制
发表时间:
2019-05
期刊:
影响因子:
1.6
通讯作者:
Bing Wu
Bing Wu
中科院分区:
--
文献类型:
--
作者:
Ji jianhua;Bing Wu

文献摘要

参考文献

相似文献

由于大气湍流,自由空间光通信(FSO)的可靠性和安全性受到严重影响。在本文中,我们提出了一种基于时间分集方案和光码分多址(OCDMA)的新FSO窃听信道模型。在接收端,合法用户通过匹配的光解码器采用时间分集接收,而窃听者则使用随机光解码器进行窃听。使用雪崩光电二极管(APD)光子计数模型,从理论上分析了合法用户和窃听用户在不同湍流和多样性下的误码率(BER)性能。基于二元非对称信道模型,利用安全容量评估了时间分集FSO/CDMA窃听信道的物理层安全性能。随着时间分集阶数的增加,FSO/CDMA窃听信道的可靠性和安全性能得到提高。仿真结果表明,时间分集FSO/CDMA窃听信道的性能优于非分集FSO/CDMA系统。
Due to atmospheric turbulence, the reliability and security of free space optical (FSO) communication is seriously affected. In this paper, we propose a new FSO wiretap channel model based on a time-diversity scheme and optical code division multiple access (OCDMA). At the receiving end, the legitimate user employs time-diversity reception by matched optical decoders, while an eavesdropper uses a random optical decoder for eavesdropping. Using an avalanche photodiode (APD) photon counting model, bit error rate (BER) performances of legitimate and eavesdropping users are theoretically analyzed under different turbulence and diversity. Based on the binary asymmetric channel model, the physical layer security performance of the time-diversity FSO/CDMA wiretap channel is evaluated by using security capacity. With the increase of time-diversity order, the reliability and security performances of FSO/CDMA wiretap channel are improved. Simulation results show that the performances of the time-diversity FSO/CDMA wiretap channel are better than those of a non-diversity FSO/CDMA system.
DOI: 10.1049/iet-com.2016.1008
发表时间: 2017-03
期刊: IET Commun.
影响因子: --
作者:
A. Bharti;Subrat Kar;V. Jain
通讯作者: A. Bharti;Subrat Kar;V. Jain
DOI: 10.1109/access.2018.2800291
发表时间: 2018-01-01
期刊: IEEE ACCESS
影响因子: 3.9
作者:
Trinh, Phuc V.;Pham, Thanh V.;Pham, Anh T.
通讯作者: Pham, Anh T.
DOI: 10.1364/jocn.6.000684
发表时间: 2014-08
期刊: IEEE/OSA Journal of Optical Communications and Networking
影响因子: --
作者:
Mina Eghbal;J. Abouei
通讯作者: Mina Eghbal;J. Abouei
DOI: 10.1109/tcomm.2002.800829
发表时间: 2002-08-01
影响因子: 8.3
作者:
Zhu, XM;Kahn, JM
通讯作者: Kahn, JM
DOI: 10.1109/comst.2014.2329501
发表时间: 2014-01-01
影响因子: 35.6
作者:
Khalighi, Mohammad Ali;Uysal, Murat
通讯作者: Uysal, Murat