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
中科院分区:
文献类型:
--
作者:
Ji jianhua;Bing Wu
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.
登录
查看更多内容
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
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
影响因子:
8.3
作者:
Zhu, XM;Kahn, JM
通讯作者:
Kahn, JM
影响因子:
35.6
作者:
Khalighi, Mohammad Ali;Uysal, Murat
通讯作者:
Uysal, Murat