Disruption Tolerant Networks for Underwater Communications
Arnav Dhamija
TL;DR
This paper discusses the development of disruption tolerant networks (DTNs) for underwater communication, addressing challenges like environmental noise and topology disruptions, and introduces a new protocol for simulation and deployment.
Contribution
The paper presents a novel DTN protocol, DtnLink, integrated into the UnetStack simulator for underwater networks, enabling resilient communication in noisy and disrupted environments.
Findings
DtnLink improves message delivery reliability in underwater DTNs.
The protocol supports flexible network topologies including data muling.
Simulation results demonstrate robustness against environmental noise.
Abstract
Disruption Tolerant Networks (DTNs) are employed in applications where the network is likely to be disrupted due to environmental conditions or where the network topology makes it impossible to find a direct route from the sender to the receiver. Underwater networks typically use acoustic waves for transmitting data. However, these waves are susceptible to interference from sources of noise such as the wake from ships, sounds from snapping shrimp, and collisions from acoustic waves generated by other nodes. DTNs are good candidates for situations where successfully delivering the message is more important than low delivery times and high network throughput. This is true for certain applications of underwater networks. DTNs can also create new options for network topologies, such as opening up the possibility of using data muling nodes if the network is resilient to delays. The…
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Taxonomy
TopicsUnderwater Vehicles and Communication Systems · Opportunistic and Delay-Tolerant Networks · Energy Harvesting in Wireless Networks
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Disruption Tolerant Networks for Underwater Communications \documenttypeBachelors Thesis \supervisorProf. Mandar Chitre \supervisorpositionAssociate Professor \supervisorinstituteNational University of Singapore \cosupervisorDr. Suvadip Batabyal \cosupervisorpositionAssistant Professor \cosupervisorinstituteBITS Pilani, Hyderabad Campus \examiner Bachelor of Engineering (Hons.) Computer Science \coursecodeBITS F421T \coursename
\IDNumber[email protected] \addresses \subject
\universityBirla Institute of Technology and Science \UNIVERSITYBIRLA INSTITUTE OF TECHNOLOGY AND SCIENCE \departmentMechanical Engineering \DEPARTMENTMECHANICAL ENGINEERING \groupResearch Group Name \GROUPRESEARCH GROUP NAME (IN BLOCK CAPITALS) \facultyFaculty Name \FACULTYFACULTY NAME (IN BLOCK CAPITALS)
\ttitle
Abstract
Disruption Tolerant Networks (DTNs) are employed in applications where the network is likely to be disrupted due to environmental conditions or where the network topology makes it impossible to find a direct route from the sender to the receiver. Underwater networks typically use acoustic waves for transmitting data. However, these waves are susceptible to interference from sources of noise such as the wake from ships, sounds from snapping shrimp, and collisions from acoustic waves generated by other nodes.
DTNs are good candidates for situations where successfully delivering the message is more important than low delivery times and high network throughput. This is true for certain applications of underwater networks. DTNs can also create new options for network topologies, such as opening up the possibility of using “data muling” nodes if the network is resilient to delays.
The Acoustic Research Laboratory (ARL) at NUS has developed their own Groovy-based underwater network simulator called UnetStack, in which network protocols can be designed and tested in a simulator. These protocols can later be directly deployed on physical hardware, such as Subnero’s underwater modems. Hence, this project revolves around creating a new UnetStack protocol called DtnLink for enabling disruption tolerant networking in various use cases of the ARL.
\listofsymbols
ll ARL & Acoustic Research Laboratory
AUV Autonomous Underwater Vehicle
DTN Disruption Tolerant Network
EM Electromagnetic
JVM Java Virtual Machine
MTU Maximum Transmission Unit
PDU Protocol Data Unit
RFC Request For Comments
SCAF Store Carry And Forward
TTL Time To Live