TY - GEN
T1 - Covert communication based on waveform overlay with weighted fractional fourier transform signals
AU - Mei, Lin
AU - Sha, Xuejun
AU - Zhang, Naitong
PY - 2010
Y1 - 2010
N2 - Most approaches for covert communication are usually done on the domain of source coding, whereas, methods on others domain are seldom seen. There are a few researches on overlay communication which is done on waveform domain, while one of the limitations is that noises have to be added in order to cover up the constellation of hidden data transmission. In this paper, we propose a new scheme for covert communication based on waveform overlay with Weighted Fractional Fourier Transform (WFRFT) signals. Signals after single parameter WFRFT present Gaussian statistics on both time and frequency domains. Moreover, the influence of multiparameter WFRFT is similar to that of multi-path fading channels. Therefore adding noises is not necessary for this approach that capacity and security of covert communication systems based on waveform overlay techniques are increased.
AB - Most approaches for covert communication are usually done on the domain of source coding, whereas, methods on others domain are seldom seen. There are a few researches on overlay communication which is done on waveform domain, while one of the limitations is that noises have to be added in order to cover up the constellation of hidden data transmission. In this paper, we propose a new scheme for covert communication based on waveform overlay with Weighted Fractional Fourier Transform (WFRFT) signals. Signals after single parameter WFRFT present Gaussian statistics on both time and frequency domains. Moreover, the influence of multiparameter WFRFT is similar to that of multi-path fading channels. Therefore adding noises is not necessary for this approach that capacity and security of covert communication systems based on waveform overlay techniques are increased.
KW - Covert communication
KW - Waveform overlay
KW - Weighted fractional fourier transform (WFRFT)
UR - https://www.scopus.com/pages/publications/77957669994
U2 - 10.1109/WCINS.2010.5541823
DO - 10.1109/WCINS.2010.5541823
M3 - 会议稿件
AN - SCOPUS:77957669994
SN - 9781424458516
T3 - Proceedings - 2010 IEEE International Conference on Wireless Communications, Networking and Information Security, WCNIS 2010
SP - 472
EP - 475
BT - Proceedings - 2010 IEEE International Conference on Wireless Communications, Networking and Information Security, WCNIS 2010
T2 - 2010 IEEE International Conference on Wireless Communications, Networking and Information Security, WCNIS 2010
Y2 - 25 June 2010 through 27 June 2010
ER -