Results 31 to 40 of about 75,227 (355)

An overview of channel coding for underwater acoustic communications [PDF]

open access: yesMILCOM 2012 - 2012 IEEE Military Communications Conference, 2012
The TRIDENT (TRansmission d'Images et de Donnees EN Temps reeel) project was launched a few years ago by GESMA (Groupe d'Etudes Sous Marine de l'Atlantique). The initial objectives were to develop a multiple-rate underwater acoustic link for images, text and data transmission. Later, the speech option was added, and more recently channel coding options
Trubuil, Joël   +2 more
openaire   +2 more sources

Measuring acoustic habitats [PDF]

open access: yes, 2015
NDM was part-funded by an EPSRC Doctoral Training Award (No. EP/P505399/1). MPJ and PLT were supported by Marine Alliance for Science and Technology Scotland (MASTS) and MPJ by a Marie Curie CIG Award.Many organisms depend on sound for communication ...
Nathan D. Merchant   +20 more
core   +1 more source

Selective Dynamic Coded Cooperative Communications for Multi-Hop Underwater Acoustic Sensor Networks

open access: yesIEEE Access, 2019
Due to the limitation of acoustic velocity in underwater environments, propagation delay is a horrible problem in multi-hop underwater acoustic sensor networks (UW-ASNs).
Yougan Chen   +4 more
doaj   +1 more source

The Localization Algorithm Based on Symmetry Correction for Underwater Acoustic Networks

open access: yesIEEE Access, 2019
Underwater localization is an important and fundamental part of the Underwater Acoustic Networks (UANs). The problem we must face is that radio waves and optical waves are heavily attenuated underwater, so acoustic signals become the most common form of ...
Shaochen Zhang   +4 more
doaj   +1 more source

M-ary nonlinear sine chirp spread spectrum for underwater acoustic communication based on virtual time-reversal mirror method

open access: yesEURASIP Journal on Wireless Communications and Networking, 2021
Linear chirp spread spectrum technique is widely used in underwater acoustic communication because of their resilience to high multipath and Doppler shift.
Songzuo Liu   +5 more
semanticscholar   +1 more source

Channel-Adaptive Location-Assisted Wake-up Signal Detection Approach Based on LFM Over Underwater Acoustic Channels

open access: yesIEEE Access, 2019
This paper focuses on the wake-up signal detection design for underwater acoustic communication (UAC) terminals. A wake-up signal detection unit can considerably reduce the power consumption of the terminals.
Deqing Wang   +4 more
doaj   +1 more source

Application of chip MAX9814 in MFSK underwater acoustic communication anti-amplitude fading processing

open access: yesDianzi Jishu Yingyong, 2021
With the rapidly increasing interests in ocean observation and ocean Internet of Things, low-cost underwater acoustic communication equipment draws more and more attention from the research community.
Li Shuang, Qiu Yifan, Tong Feng
doaj   +1 more source

The Influence of MAC Protocol on a Non-Synchronous Localization Scheme in Large-Scale UWSNs

open access: yesIEEE Access, 2018
Localization plays a more and more important role in underwater wireless sensor networks (UWSNs). But in the large-scale UWSNs, the localization algorithm can’t be realized for the continuous packet collision.
Keyu Chen   +4 more
doaj   +1 more source

A Secure Communication Suite for Underwater Acoustic Sensor Networks [PDF]

open access: yes, 2012
In this paper we describe a security suite for Underwater Acoustic Sensor Networks comprising both fixed and mobile nodes. The security suite is composed of a secure routing protocol and a set of cryptographic primitives aimed at protecting the ...
Dini, Gianluca   +4 more
core   +1 more source

Node Selection Algorithm for Underwater Acoustic Sensor Network Based on Particle Swarm Optimization

open access: yesIEEE Access, 2019
Underwater target positioning technology is the most important part of UnderWater Acoustic Sensor Network(called UWASN), and it is one of the most important research directions in this field with broad application prospects in commercial and military ...
En Cheng   +4 more
doaj   +1 more source

Home - About - Disclaimer - Privacy