Underwater Channel
An Underwater Channel Model and Chirp Slope Keying Modulation Scheme Performance
... the underwater channel used in this research because of our need to model the worst possible medium through which we will send ...real underwater colored noise source because they are mathematically ...
73
Simulation of Underwater Channel Estimation Based on Different Node Placement Using NS2
... A sensor node consumes battery power in the following four operations: sensing data, receiving data, sending data, and processing data. Generally, the most energy consuming component is the RF module that provides ...
8
Safety Aspects of Enhanced Underwater Acoustic Sensor Networks
... acoustic channel for exchange information ...the underwater channel and is safe against the opponents who know the number of deep fades but not their exact ...
6
Design of Underwater Acoustic Channel Model for OFDM Communication System
... for Underwater acoustic channel model is been achieved in the research ...work. Underwater channel characteristics like Multipath parameters, Attenuation parameters and ambient noise ...
5
Underwater Wireless Communication
... an underwater channel known as acoustic ...of underwater acoustics began in ...Wired underwater is not feasible in all situations like in temporary experiments, breaking of wires, significance ...
5
The Effect Of Convolution Code Structural Property To Reduce The Bit Error Rate In Underwater Acoustic Channel
... in underwater channel is most challenge task for an ocean ...The channel gives least error rate compared to space communication due to the various factors like high attenuation, heavy multipath ...
7
Design of an Acoustic Communication System Based on FHMA for Multiple Underwater Vehicles
... of underwater acoustic comm- unication system based on tamed spread spectrum and FHMA for multiple underwater ...in underwater acoustic channel, two key tech- niques of tamed spread spectrum ...
9
A new joint channel equalization and estimation algorithm for underwater acoustic channels
... resources, underwater communication is playing a more critical role in both military and civilian ...in underwater channels, sound wave becomes the only effective com- munication ...restrained ...
6
Logical Link Control and Channel Scheduling for Multichannel Underwater Sensor Networks
... autonomous underwater vehicle ...an underwater surveillance ...in underwater networks using CDMA techniques ...Each channel is characterized by a data transmission rate, which is used to ...
8
Optimum Bit Rate for Image Transmission over Underwater Acoustic Channel
... UWA channel will be ...suggested underwater channel physical parameter according to Equation ...of channel relative delays and magnitudes for each ...
11
Challenges for Efficient Communication in Underwater Acoustic Sensor Network
... acoustic channel, and make the available bandwidth of the UnderWater Acoustic (UW-A) channel limited and dramatically dependent on both range and ...radio channel. Underwater acoustic ...
9
An Underwater Acoustic Implementation of DFT-Spread OFDM
... an underwater acoustic ...fading channel, which is one of the many challenges of communicating data through an underwater acoustic ...real underwater acoustic channel—the experimental ...
6
Survey on Various Types of Noise and Methods for Noise Removal
... in underwater acoustic communication only statistical channel modeling has been studied because of ...statistical channel model when narrow-band signal is used for transmitting sound ...of ...
6
Analysis and Simulation of Link Performance for Underwater Wireless Optical Communications
... This paper investigates how to increase communication distance of underwater wireless optical communication system. In order to analyze the communication distance of UWOC, the performance of optical transmitter ...
6
A Survey on Underwater Acoustic Sensor Networks: Perspectives on Protocol Design for Signaling, MAC and Routing
... namic, whether variation of topology is low-speed/smooth (only by external force of marine streams) or high-speed/fast (with both external and internal forces). Consequently in the recent years, design of ...
12
Review Article: Multicarrier Communication for Underwater Acoustic Channel
... rate underwater acoustic communica- ...over underwater acoustic channels with sig- nificant Doppler ...during underwater channel paths signals after implemented to make zero-pad guard interval ...
16
Absolute abundance estimates from shallow water baited underwater camera surveys; a stochastic modelling approach tested against field data
... - Comparable abundance estimates generated by the model and transects Keywords: baited underwater cameras; modeling; fish and invertebrate surveys; underwater visual census Abbreviations[r] ...
28
Research and Application of an Underwater Detection Robot with Three Level Control Mode of ROV/ARV/AUV
... an underwater robot with the three-level control mode of ROV/ARV/AUV is ...the underwater robot body can be completed by the water surface controller through the umbilical cable, and the complex ...
6
Study and Analysis of Dynamic Routing Protocols for Different Parameters in Underwater Acoustic Sensor Networks
... in underwater which in turn transmit the acoustic signal to the satellite ...Also, underwater sensor nodes can be fixed or ...In underwater sensor networks we require high power due to farthest ...
5
Microcontroller navigation and motion control system of the underwater robotic complex
... the underwater multiple robots consists in the ...remote-controlled underwater robots, whose operation requires the availability of the special ship carriers with lifting devices, there is a global tendency ...
12