dc.contributor.author | Mhemed, Rogaia | |
dc.date.accessioned | 2022-08-31T16:37:12Z | |
dc.date.available | 2022-08-31T16:37:12Z | |
dc.date.issued | 2022-08-31 | |
dc.identifier.uri | http://hdl.handle.net/10222/81951 | |
dc.description.abstract | Abstract
Underwater wireless sensor networks (UWSN) are an active area of research and
development. The underwater environment is harsh; acoustic channel characteristics such
as high attenuation and absorption are an important challenge for the implementation of
UWSNs. Void holes in networks, where a node can receive but cannot transmit to any
node other than the sender, also present a significant challenge. This dissertation is
motivated by these challenges and investigates solutions for energy efficient and void
avoiding routing protocols for UWSNs.
A proposed greedy routing protocol called Energy Efficient Depth-Based Opportunistic
Routing (EEDOR) is designed and simulated. This protocol uses a novel holding time
formula that incorporates both the priority of the candidate node and the depth difference
between the packet sender and each candidate node of its forwarding set. The protocol
uses a simple design that allows sensor nodes to form their forwarding sets by
exchanging local information only. Nodes can collect information efficiently by listening
and responding to forward request and forward reply messages. Simulation results show
that the proposed protocol achieves significant energy savings as compared to popular
protocols, thereby also extending network lifetime significantly.
A void avoiding protocol called the called Energy Efficient Depth-Based Opportunistic
Routing with Void Avoidance (EEDOR-VA) is also proposed. The novelty of this
technique lies in employing a hop-count to determine paths between the source node and
sink(s). Trapped and void nodes are recognized and eliminated from node forwarding
sets. This protocol is shown to have a high packet delivery ratio (PDR). The protocol is
evaluated using two different sets of simulation settings.
Finally, the impact of the number of sinks and the sink deployment method on energy
conservation and PDR is investigated. Simulation results show that using a deterministic
multi-sink deployment can reduce the number of request and reply messages. As a result,
the network overhead is reduced, decreasing the energy usage and increasing the PDR of
the network. | en_US |
dc.language.iso | en | en_US |
dc.subject | Routing | en_US |
dc.subject | Underwater sensor networks | en_US |
dc.subject | Opportunistic routing | en_US |
dc.subject | Energy Efficient | en_US |
dc.subject | Void area | en_US |
dc.subject | Void avoidance | en_US |
dc.title | ENERGY EFFICIENT AND VOID AVOIDING ROUTING PROTOCOLS FOR UNDERWATER WIRELESS SENSOR NETWORKS | en_US |
dc.date.defence | 2022-08-24 | |
dc.contributor.department | Department of Engineering Mathematics & Internetworking | en_US |
dc.contributor.degree | Doctor of Philosophy | en_US |
dc.contributor.external-examiner | Dr. Muhammad Zeeshan Shakir | en_US |
dc.contributor.graduate-coordinator | Dr. Serguei Iakovlev | en_US |
dc.contributor.thesis-reader | Dr. Bill Roberston | en_US |
dc.contributor.thesis-reader | Dr. Srinivas Sampalli | en_US |
dc.contributor.thesis-supervisor | Dr. William Phillips | en_US |
dc.contributor.thesis-supervisor | Dr. Frank Comeau | en_US |
dc.contributor.thesis-supervisor | Dr. Nauman Aslam | en_US |
dc.contributor.ethics-approval | Not Applicable | en_US |
dc.contributor.manuscripts | Not Applicable | en_US |
dc.contributor.copyright-release | Not Applicable | en_US |