Related Experiment Video
Updated: Jan 3, 2026

08:15
Data Communication Based on MQTT in a Polymer Extrusion Process
Published on: July 15, 2022
3.7K
Multicore-Processor Based Software-Defined Communication/Network Platform for Underwater Internet of Things
Chaohui Luo1, Biyun Ma1, Fangjiong Chen1
1School of Electronics and Information Engineering, South China University of Technology, Guangzhou 510641, China.
Sensors (Basel, Switzerland)
|November 30, 2019
Summary
This study introduces a flexible software-defined acoustic modem (SDAM) platform using a TI AM5728 processor. The platform enables seamless migration of network protocols from simulation to hardware for underwater communication.
Area of Science:
- Computer Engineering
- Underwater Communications
- Network Simulation
Background:
- Software-defined acoustic modems (SDAMs) offer flexibility and programmability for underwater communication and networking.
- Existing platforms may lack seamless integration between network simulation and hardware deployment.
Purpose of the Study:
- To propose a reconfigurable platform for SDAMs based on the TI AM5728 processor.
- To enable seamless migration of network protocols from simulation (NS3) to hardware.
- To facilitate real-world testing of underwater acoustic communication protocols.
Main Methods:
- Utilized a TI AM5728 processor with dual-core ARM Cortex-A15 and dual TI C66x DSP cores.
- Implemented physical-layer communication (signal processing, A/D, D/A) on DSP cores.
- Executed networking protocols and applications on ARM cores, running the NS3 network simulator.
Main Results:
- Developed a platform allowing network protocols from NS3 to be directly migrated to hardware.
- Integrated a physical-layer module for transmission over a real acoustic channel.
- Demonstrated platform effectiveness through networking experiments involving five nodes.
Conclusions:
- The proposed reconfigurable platform effectively supports software-defined acoustic modems.
- Seamless transition from simulation to hardware accelerates underwater communication system development.
- The platform facilitates realistic testing and validation of underwater acoustic networking protocols.
Keywords:
open architecturesoftware-defined modemsunderwater acoustic communicationsunderwater wireless networksMore Related Videos
Related Concept Videos
Buoyancy and Stability for Submerged and Floating Bodies
2.4K
In fluid mechanics, buoyancy and stability are key concepts for understanding the behavior of submerged and floating bodies. When a stationary body is fully or partially submerged in a fluid, the fluid exerts a force on the body known as the buoyant force. This force acts vertically upward through a point called the center of buoyancy, which is the center of the displaced fluid volume. According to Archimedes' principle, the magnitude of the buoyant force is equal to the weight of the fluid...
2.4K
Semiconductors
1.3K
There is variation in the electrical conductivity of materials - metals, semiconductors, and insulators that are showcased with the help of the energy band diagrams.
Metals such as copper (Cu), zinc (Zn), or lead (Pb) have low resistivity and feature conduction bands that are either not fully occupied or overlap with the valence band, making a bandgap non-existent. This allows electrons in the highest energy levels of the valence band to easily transition to the conduction band upon gaining...
Metals such as copper (Cu), zinc (Zn), or lead (Pb) have low resistivity and feature conduction bands that are either not fully occupied or overlap with the valence band, making a bandgap non-existent. This allows electrons in the highest energy levels of the valence band to easily transition to the conduction band upon gaining...
1.3K
Non-ohmic Devices
1.4K
In most substances, the current flow is proportional to the voltage applied to it. A simple relationship between the values of current, voltage, and resistance is known as Ohm's law. Nonohmic devices do not exhibit a linear relationship between voltage and current. One such device is the semiconducting circuit element known as a diode. A diode is a circuit device that allows current flow in only one direction.
Consider a simple circuit consisting of a battery, a diode, and a resistor. A...
Consider a simple circuit consisting of a battery, a diode, and a resistor. A...
1.4K
Parallel Processing
568
The brain processes sensory information rapidly due to parallel processing, which involves sending data across multiple neural pathways at the same time. This method allows the brain to manage various sensory qualities, such as shapes, colors, movements, and locations, all concurrently. For instance, when observing a forest landscape, the brain simultaneously processes the movement of leaves, the shapes of trees, the depth between them, and the various shades of green. This enables a quick and...
568
Neuronal Communication
2.8K
Neurons, the fundamental units of the brain and nervous system, communicate through complex electrochemical signals that underpin all cognitive and bodily functions. This communication is primarily facilitated by a process involving the generation and propagation of an action potential along the axon of the neuron. When the internal electrical charge of a neuron surpasses a certain threshold, an action potential is triggered. This rapid change in voltage travels swiftly along the axon to the...
2.8K
Buoyancy
12.1K
When an object is placed in a fluid, it either floats or sinks. All objects in a fluid experience a buoyant force. For example, a metal ball sinks, while a rubber ball floats. Similarly, a submarine can sink and float by adjusting its buoyancy. The concept of buoyancy raises several interesting questions. For instance, where does this buoyant force come from? How much buoyant force is required to make an object sink or float? Do objects that sink get any support at all from the...
12.1K

