student profile: Mr Robert Webster


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Thesis work

Thesis title: Underwater Wireless Sensor Networks: Organisation and Routing to Improve Network Longevity

Supervisors: Abbas JAMALIPOUR , Kumudu MUNASINGHE

Thesis abstract:

Wireless Sensor Networks have capabilities defined by their individual nodes or sensors. In most cases, the sensors have low battery life and low memory and processing abilities. Underwater Wireless Sensor Networks (UWSNs) apply further constraints to an already constrained network. UWSNs are further characterized by limitations dependent on communications technology used. For Radio Frequency (RF) communications the signal is highly attenuated. For Acoustic communications, signals are inhibited by high propagation delay and low bandwidth. Whilst acoustic signals travel faster in denser media, approximately 1500m/s in underwater environments, its propagation speed is drastically slower than electromagnetic signals. This introduces high latency into the network, which for localization and other applications, would require each sensor to have a precise clock, which is cost prohibitive. Furthermore, acoustic networks require higher transmission power which detracts from our power consumption constraint. Therefore, we propose a dense UWSN utilising RF communications. It is our belief that the disadvantages of utilising RF communications in a highly attenuating medium are outweighed by the benefits of significantly improved bandwidth and latency over acoustic counterparts. In fact, the highly attenuating medium can be used as a positive due to reduced collisions in underwater packets, an issue further diminishing the value of acoustic underwater networks. Our research shows that by incorporating RF communications in UWSNs, we can increase the networks bandwidth, lower its latency, opening the network to newer and more advanced applications.

Selected publications

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Conferences

  • Webster, R., Munasinghe, K., Jamalipour, A. (2018). Murmuration inspired clustering protocol for underwater wireless sensor networks. IEEE International Conference on Communications (ICC 2018), Piscataway, NJ: Institute of Electrical and Electronics Engineers (IEEE). [More Information]
  • Webster, R., Munasinghe, K., Jamalipour, A. (2017). Narrow-beam optical communications in underwater wireless network with passive node mobility. IEEE International Conference on Communications (ICC 2017), Paris, France: Institute of Electrical and Electronics Engineers (IEEE). [More Information]
  • Webster, R., Munasinghe, K., Jamalipour, A. (2016). Optimized resource allocation in LTE networks incorporating delay-sensitive smart grid traffic. 2016 IEEE International Conference on Smart Grid Communications (SmartGridComm), Piscataway: Institute of Electrical and Electronics Engineers (IEEE). [More Information]
  • Webster, R., Munasinghe, K., Jamalipour, A. (2015). Eco-inspired low latency performance for Smart Grid applications in wireless networks. 2015 IEEE International Conference on Communications (ICC), Piscataway, New Jersey, USA: Institute of Electrical and Electronics Engineers (IEEE). [More Information]
  • Webster, R., Munasinghe, K., Jamalipour, A. (2015). Energy-aware joint transmission Coordinated MultiPoint utilizing dynamic sectorization. 2015 22nd International Conference on Telecommunications (ICT 2015), Piscataway, New Jersey, USA: Institute of Electrical and Electronics Engineers (IEEE). [More Information]
  • Webster, R., Munasinghe, K., Jamalipour, A. (2014). A population theory inspired solution to the optimal bandwidth allocation for smart grid applications. 2014 IEEE Wireless Communications and Networking Conference (WCNC 2014), Piscataway, USA: Institute of Electrical and Electronics Engineers (IEEE). [More Information]
  • Hossain, M., Canning, J., Ast, S., Rutledge, P., Webster, R., Jamalipour, A. (2014). Centralised and portable "network forensics" using smartphone-based diagnostics: Case Study - the mapping of tap water pH across Sydney, Australia. 2014 IEEE Photonics Conference, IPC 2014, Piscataway, USA: Institute of Electrical and Electronics Engineers (IEEE). [More Information]
  • Webster, R., Munasinghe, K., Jamalipour, A. (2014). Optimal resource allocation for smart grid applications in high traffic wireless networks. 2014 IEEE International Conference on Smart Grid Communications (SmartGridComm), United States: Institute of Electrical and Electronics Engineers (IEEE). [More Information]
  • Webster, R., Munasinghe, K., Jamalipour, A. (2013). A scalable distributed Microgrid Control Structure. 2013 IEEE TENCON Spring Conference, Piscataway, NJ: Institute of Electrical and Electronics Engineers (IEEE). [More Information]

2018

  • Webster, R., Munasinghe, K., Jamalipour, A. (2018). Murmuration inspired clustering protocol for underwater wireless sensor networks. IEEE International Conference on Communications (ICC 2018), Piscataway, NJ: Institute of Electrical and Electronics Engineers (IEEE). [More Information]

2017

  • Webster, R., Munasinghe, K., Jamalipour, A. (2017). Narrow-beam optical communications in underwater wireless network with passive node mobility. IEEE International Conference on Communications (ICC 2017), Paris, France: Institute of Electrical and Electronics Engineers (IEEE). [More Information]

2016

  • Webster, R., Munasinghe, K., Jamalipour, A. (2016). Optimized resource allocation in LTE networks incorporating delay-sensitive smart grid traffic. 2016 IEEE International Conference on Smart Grid Communications (SmartGridComm), Piscataway: Institute of Electrical and Electronics Engineers (IEEE). [More Information]

2015

  • Webster, R., Munasinghe, K., Jamalipour, A. (2015). Eco-inspired low latency performance for Smart Grid applications in wireless networks. 2015 IEEE International Conference on Communications (ICC), Piscataway, New Jersey, USA: Institute of Electrical and Electronics Engineers (IEEE). [More Information]
  • Webster, R., Munasinghe, K., Jamalipour, A. (2015). Energy-aware joint transmission Coordinated MultiPoint utilizing dynamic sectorization. 2015 22nd International Conference on Telecommunications (ICT 2015), Piscataway, New Jersey, USA: Institute of Electrical and Electronics Engineers (IEEE). [More Information]

2014

  • Webster, R., Munasinghe, K., Jamalipour, A. (2014). A population theory inspired solution to the optimal bandwidth allocation for smart grid applications. 2014 IEEE Wireless Communications and Networking Conference (WCNC 2014), Piscataway, USA: Institute of Electrical and Electronics Engineers (IEEE). [More Information]
  • Hossain, M., Canning, J., Ast, S., Rutledge, P., Webster, R., Jamalipour, A. (2014). Centralised and portable "network forensics" using smartphone-based diagnostics: Case Study - the mapping of tap water pH across Sydney, Australia. 2014 IEEE Photonics Conference, IPC 2014, Piscataway, USA: Institute of Electrical and Electronics Engineers (IEEE). [More Information]
  • Webster, R., Munasinghe, K., Jamalipour, A. (2014). Optimal resource allocation for smart grid applications in high traffic wireless networks. 2014 IEEE International Conference on Smart Grid Communications (SmartGridComm), United States: Institute of Electrical and Electronics Engineers (IEEE). [More Information]

2013

  • Webster, R., Munasinghe, K., Jamalipour, A. (2013). A scalable distributed Microgrid Control Structure. 2013 IEEE TENCON Spring Conference, Piscataway, NJ: Institute of Electrical and Electronics Engineers (IEEE). [More Information]

Note: This profile is for a student at the University of Sydney. Views presented here are not necessarily those of the University.