Non-Orthogonal Multiple Access-Based Underwater VLC Systems in the Presence of Turbulence
IEEE Photonics Journal, 2022 The promising potential of underwater applications in visible light communication (VLC) systems has recently gained considerable research attention, as an efficient technology for enabling high data rate, massive connectivity, and ultra-low latency ...
Lina Bariah +4 more
doaj +1 more source
Surface Based Underwater Communications [PDF]
2010 IEEE Global Telecommunications Conference GLOBECOM 2010, 2010 In an underwater environment signal propagation for the acoustic channel is subject to major multipath effect. Therefore, most underwater communication schemes require that the position of the transmitter or receiver is fixed while using directional antennas in order to ensure high signal-to-noise ratio.
Emokpae, Lloyd, Younis, Mohamed
openaire +2 more sources
SotonAUV: the design and development of a small, manoeuvrable autonomous underwater vehicle [PDF]
, 2008 The University of Southampton's entry into the Student Autonomous Underwater Challenge-Europe (SAUC-E) 2007 was a custom designed and built autonomous underwater vehicle (AUV) named 'SotonAUV'.
Sharkh, S.M. +12 more
core +1 more source
Spectral characterisation of shortened pulse position modulation format [PDF]
, 2010 Shortened pulse position modulation (SPPM) is a new modulation format that has recently been proposed for underwater wireless optical communications. A full spectral characterisation of SPPM is considered and original expressions are presented, which ...
Cryan, R.A.
core +1 more source
Underwater Acoustic Communication Channel Modeling Using Reservoir Computing
IEEE Access, 2022 Underwater acoustic (UWA) communications have been widely used but greatly impaired due to the complicated nature of the underwater environment. In order to improve UWA communications, modeling and understanding the UWA channel is indispensable. However,
Oluwaseyi Onasami +4 more
doaj +1 more source
Fast Sparse Bayesian Learning-Based Channel Estimation for Underwater Acoustic OFDM Systems
Applied Sciences, 2022 Harsh underwater channels and energy constraints are the two critical issues of underwater acoustic (UWA) communications. To achieve a high channel estimation performance under a severe underwater channel, sparse Bayesian learning (SBL)-based channel ...
Yong-Ho Cho
doaj +1 more source
RESEARCH ON UNDERWATER COMMUNICATION AND SIMULATED ASSESSMENT OF MAIN PARAMETERS
Tạp chí Khoa học Đại học Đà Lạt, 2018 Underwater communication and its applications is a research field that has been developing rapidly, extending in many fields such as remote control in the offshore oil industry, calculating environmental pollution, transmitting voices between frogmen ...
Phan Thanh Minh, Nguyễn Ngọc Bình
doaj +1 more source
Probe timing optimization for time-reversal underwater communications [PDF]
, 2011 Passive Time Reversal (pTR) is one of the variants of time reversal applicable to digital underwater communications. In passive time reversal a probe-signal is transmitted ahead of the data-signal in order to estimate the channel impulse response for ...
S. M. Jesus +6 more
core +1 more source
An environmental equalizer for underwater acoustic communications Tested at Hydralab III [PDF]
, 2010 It is known that small changes in source and receiver locations can cause significant changes in underwater acoustic channel impulse responses. At HYDRALAB III an underwater acoustic experiment was conducted to show that a source depth-shift causes a ...
Silva, A. +4 more
core +1 more source
Underwater Multirobot Cooperative Intervention MAC Protocol
IEEE Access, 2020 This work introduces a Medium Access Control (MAC) protocol designed to allow a group of underwater robots that share a wireless communication channel to effectively communicate with each other.
Diego Centelles +3 more
doaj +1 more source