Energy-efficient barrier coverage based on nodes alliance for intrusion detection in underwater sensor networks

J Chang, X Shen, W Bai, X Li - IEEE Sensors Journal, 2022 - ieeexplore.ieee.org
The barrier coverage problem is generally considered for intrusion detection in underwater
sensor networks (UWSNs). In conventional barrier coverage strategies in UWSNs, there is …

Channel estimation based on statistical frames and confidence level in OFDM systems

X Zhou, C Wang, R Tang, M Zhang - Applied Sciences, 2018 - mdpi.com
Featured Application This channel estimation method can be utilized to improve the
communication quality of OFDM receiver. Abstract Channel estimation is an important …

Hierarchy graph based barrier coverage strategy with a minimum number of sensors for underwater sensor networks

J Chang, X Shen, W Bai, R Zhao, B Zhang - Sensors, 2019 - mdpi.com
Underwater sensor networks (UWSNs) based barrier coverage is increasingly important for
intrusion detection due to the scarcity of underwater sensor resource. To improve UWSNs' …

Performance of CZT-assisted parallel combinatory multicarrier Frequency-Hopping Spread Spectrum over shallow underwater acoustic channels

F Xu, C Zhan, Y Xie, D Wang - Ocean Engineering, 2015 - Elsevier
Abstract A Parallel Combinatory multicarrier Frequency-Hopping Spread Spectrum (PC/MC-
FHSS) Underwater Acoustic (UWA) communication system combined with a Chip-z …

Parallel combinatory multicarrier frequency-hopped spread spectrum for long range and shallow underwater acoustic communications

C Zhan, F Xu, X Hu - Proceedings of the 8th International Conference on …, 2013 - dl.acm.org
A parallel combinatory (PC) multicarrier frequency-hopped spread spectrum (FHSS)
underwater acoustic (UWA) communication system is proposed in this paper. Parallel …

[PDF][PDF] 基于VMD 和HSA 的水声跳频信号时频分析方法

陈立军, 张海勇, 韩东 - 科学技术与工程, 2015 - stae.com.cn
摘# 要# 针对水声通信中低信噪比条件下的水声跳频信号检测和参数估计问题,
提出了一种新的基于变分模态分解(9LR) 和希尔伯特谱分析(H* _) 相结合的水声跳频信号时频 …

Multipath fading channel characterization and performances of forward error correction codes in very shallow water

M Bae, D Xue, J Park, JR Yoon - Journal of the Korea Institute of …, 2015 - oak.go.kr
In very shallow water acoustic communication channel, underwater acoustic (UWA)
communication signal is observed as frequency selective fading signal due to time-varying …

On Design of Covert Communication System with Frequency Hopping by OFDM

L Jiang, Z Song, Y Zhang, Y Qian - … of the 7th International Conference on …, 2022 - dl.acm.org
With the rapid development of computer networks, network information security has
gradually been concerned. The research on covert channel has become one of a hot issue …

[PDF][PDF] 극천해다중경로페이딩채널특성과전방오류정정코드의성능

배민자, 설단단, 박지현, 윤종락 - 한국정보통신학회논문지(J …, 2015 - researchgate.net
요 약극 천해 음향 통신 채널에서 수중 음향 통신 신호는 시변 다중 경로에 의해 주파수
선택적인 페이딩 신호로 관측된다. 이러한 특성으로 시간 및 주파수에 따라 심벌간의 간섭이 …

[引用][C] 有色噪声背景下的水声跳频信号参数估计

姚帅, 方世良, 王晓燕 - 东南大学学报(自然科学版), 2014