David Murray  from Murdoch University in Perth Australia.
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9360 2723

Email

D.Murray@murdoch.edu.au

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    Dr David Murray
    PhD

    Senior Lecturer

    About me

    I am an academic in Information Technology. I have the privilege of teaching students from their first semester, to the completion of their doctorate. I teach and perform research in the field of Computer Networks.

    Most recently I have been interested in IoT based or embedded computer systems. We have been doing some innovative work around LoRaWAN, namely the transmissions of images and the recovery of missing data over this low power low data rate WAN technology. We have a working prototype that can reliably move images, large distances over LoRaWAN. I also work closely with a colleague Terry Koziniec, who works with HF transmissions.

    I am Interested in Computer Protocols and have developed a Performance Enhancing Proxy that can improve the performance of WiFi Networks. I have also performed experiments investigating the effect of raising the Internet MTU (packet size) which has been stagnant since the 1980s. I have investigated how WiFi devices can move quickly between different WiFi networks.

    I also perform internet measurement research as I am interested in protocol changes in the core of the internet as well as the forces that drive or prevent these changes. I find it fascinating, considering Internet technology has changed so much, that protocol changes are so hard and slow. We have been running out of IP addresses since the 1990′s but we are only seeing actual changes today. There have been better ways to deal with Internet congestion, in terms of how we queue and signal congestion but again adoption is still almost non-existent

    Teaching area

    The units that I teach are quite applied and hands on. My current units are:

    • ICT171 – Introduction to Server Environments and Architectures

    We live in an increasingly online and connected world. Beyond our desktop computers, tablets and smart phones exist the servers, software and back-end infrastructure that store our files, send our email, deliver the World Wide Web and implement social networking. Students will implement Windows and Linux servers in ‘bare-metal’, virtual and cloud environments. Issues examined are associated with large scale computing resources, storage, backup, disaster recovery, management, costs, legislation and whether to deliver in-house or to outsource.

    • ICT369 – Wireless and Interactive Networks

    This unit will explore wireless networks and service provider technologies. It focuses on the data link layer, with particular emphasis on the types of links and services that service providers offer to consumers. There is an early emphasis on the operation, design and configuration of WiFi. Students will understand LTE, HSPDA, ADSL, DOCSIS, GPON and the MAC and physical characteristics of these link types. Students will also implement the authentication, encryption and tunnelling services that are frequently used over the internet.

    • ICT109 – IoT Technoprenuership

    This unit provides the foundations of your skill development in the Internet of Things (IoT). Using real IoT hardware and sensors you will plan the unique niche you wish to carve out. Aided by resources to improve your reading, writing, critical thinking and speaking skills you will craft a written and oral proposal. You will finish this unit with an IoT prototype, a well-constructed plan of where you wish to go, and what skills must be developed to get there.

    Research areas

    I am a distributed systems researcher with a focus on data communications. My approaches are usually applied and experimental. I have published in the following topics:

    • IoT
    • TCP Performance Enhancing Proxies (PEPs)
    • Embedded Systems
    • 802.11 Performance
    • Multi-hop Ad-hoc Networks
    • LoRaWAN
    • Wireless Sensor Networks (WSNs)
    • TCP congestion control
    • Active Queue Management (AQM)
    • Jumboframes
    • Routing protocols

    Awards and grants

    2010 – $7,500 USD from Amazon for use of the Amazon Web Services Cloud Computing platform. The grant will pursue a research proposal entitled: “Managing Dynamic Environmental Sensor Network Load with Cloud Computing Resources”

    2014 – $5,000 USD from Amazon for use of the Amazon Web Services Cloud Computing platform. The grant will pursue a research proposal entitled: “Investigating the Performance of Wireless Congestion Control Strategies”

    2019 – $100,0000 In conjunction with the Harry Butler Institute, I am part of a team that received $100k of industry funding from Cisco Systems and a matching grant of $100k from Murdoch University in 2019 to support the Enhancing Digital Environmental Monitoring (EDEM) project.  Central to this project is the use of LoRaWAN technology to transport remote environmental data. This project is ongoing.

    Doctoral and masters supervisions

    Completions
    • Paul Ryder (Msc) Low Bandwidth WAN Performance: Evaluation of Differentiated and Integrated QoS options
    • Alex Nguni (Msc) Home User Security
    • Nabhan Hamadneh (PhD) Analysis and Design of Active Queue Management for
      TCP-RED Congestion Control Strategies
    • Wei Wang (DIT) Building a Global Generic Architecture for the Future Internet of Things (GGIoT)
    • Abubakar Bello (DIT) A Framework for Investigating, Assessing, Understanding, and Controlling the Information Security and Privacy Risks in BYOD Environments
    Current students
    • Kevin Ong (PhD)
    • Rukshan Alexander (PhD)
    • Pema Choejey (PhD)
    • Sanal Panicker (PhD)

    Publications

    Chapters

    • Thompson, N., McGill, T., Murray, D., (2018),Affect sensitive computer systems,In: Encyclopedia of Information Science and Technology (4rd edition), Information Science Reference, pages 4124 to 4135.

    Journals

    • Alexander, R., Thompson, N., McGill, T., Murray, D., (2021), The Influence of User Culture on Website Usability, International Journal of Human-Computer Studies, 154, , .
    • Wang, W., Lee, K., Murray, D., Guo, J., (2019), Discovering objects and services in context-aware IoT environments, International Journal of Services Technology and Management, 25, 3-4, pages 326 - 347.
    • Loizidis, O., Kastrinakis, M., Badawy, G., Smadi, M., Murray, D., Koutsakis, P., (2018), Efficient Policing for Screen Mirroring Traffic, Human-centric Computing and Information Sciences, 8, 4, pages -.
    • Garba Bello, A., Murray, D., Armarego, J., (2017), A systematic approach to investigating how information security and privacy can be achieved in BYOD environments, Information and Computer Security, 25, 4, pages 475 - 492.
    • Murray, D., McGill, T., Thompson, N., Toohey, D., (2017), Can learners become teachers? Evaluating the merits of student generated content and peer assessment, Issues in Informing Science and Information Technology, 14, , pages 21 - 33.
    • Alexander, R., Thompson, N., Murray, D., (2016), Towards cultural translation of websites: a large-scale study of Australian, Chinese, and Saudi Arabian design preferences, Behaviour and Information Technology, 0, 0, pages 1 - 13.
    • Garba Bello, A., Armarego, J., Murray, D., (2015), A Policy Based Framework for Managing Information Security and Privacy Risks in BYOD Environments, International Journal of Emerging Trends & Technology in Computer Science, 4, 2, pages 189 - 198.
    • Garba Bello, A., Armarego, J., Murray, D., (2015), Bring your own device organizational information security and privacy, Journal of Engineering and Applied Sciences, 10, 3, pages 1279 - 1287.
    • Garba Bello, A., Armarego, J., Murray, D., Kenworthy, W., (2015), Review of the Information Security and Privacy Challenges in Bring Your Own Device (BYOD) Environments, Journal of Information Privacy & Security, 11, 1, pages 38 - 54.
    • Hamadneh, N., Murray, D., Dixon, M., Cole, P., (2010), QSRED, An Algorithm To Solve The Mismatch Between The Microscopic and Macroscopic Behavior of RED Gateways, International Journal of Computer Science and Network Security, 10, 11, pages 63 - 70.

    Conference

    • Murray, D., Koziniec, T., Zander, S., Dixon, M., Koutsakis, P., (2017),An Analysis of Changing Enterprise Network Traffic Characteristics,In: 23rd Asia-Pacific Conference on Communications (APCC).
    • Alexander, R., Murray, D., Thompson, N., (2017),Cross-Cultural web usability model,In: International Conference on Web Information Systems Engineering.
    • Koziniec, T., Murray, D., Dixon, M., (2017),Spatial Diversity for HF Remote Sensors,In: 2017 IEEE Conference on Antenna Measurements & Applications (CAMA).
    • Zander, S., Murray, D., (2017),Share or Not: Investigating the Presence of Large-Scale Address Sharing in the Internet,In: IEEE Local Computer Networks (LCN).
    • Ong, K., Zander, S., Murray, D., McGill, T., (2017),Experimental Evaluation of Less-than-Best-EffortTCP over 802.11 Wireless Networks,In: 23rd Asia-Pacific Conference on Communications (APCC).
    • Ong, K., Zander, S., Murray, D., McGill, T., (2017),Experimental Evaluation of Less-Than-Best-Effort TCP Congestion Control Mechanisms,In: IEEE Local Computer Networks (LCN).
    • Alexander, R., Murray, D., Thompson, N., (2017),Cross-Cultural web design guidelines,In: Proceedings of the 14th Web for All Conference on The Future of Accessible Work.
    • Murray, D., Koziniec, T., Dixon, M., Lee, K., (2016),Measuring the reliability of 802.11 WiFi networks,In: Internet Technologies & Applications.
    • Ong, K., Murray, D., McGill, T., (2016),Large-sample comparison of TCP congestion control mechanisms over wireless networks,In: 30th International Conference on Advanced Information Networking and Applications Workshops.
    • Murray, D., Ong, K., (2015),Experimental Evaluation of Congestion Avoidance,In: 2015 IEEE 29th International Conference on Advanced Information Networking and Applications.
    • Murray, D., (2015),Why Internet Protocols Need Incentives,In: 2015 IEEE 29th International Conference on Advanced Information Networking and Applications.
    • Choejey, P., Fung, L., Wong, K., Murray, D., Xie, H., (2015),Cybersecurity Practices for E-Government: An Assessment in Bhutan,In: The 10th International Conference on e-Business (iNCEB2015).
    • Choejey, P., Fung, L., Wong, K., Murray, D., (2015),Cybersecurity challenges for Bhutan,In: 12th International Conference on Electrical Engineering/Electronics, Computer, Telecommunications and Information Technology (ECTI-CON).
    • Murray, D., Koziniec, T., McGill, T., (2014),Student Perceptions of Flipped Learning,In: 17th Australasian Computer Education Conference (ACE 2015),.
    • Wang, W., Lee, K., Murray, D., (2013),Building a Generic Architecture for the Internet of Things,In: 8th International Conference on Intelligent Sensors, Sensor Networks and Information Processing (ISSNIP) (2013).
    • Murray, D., Koziniec, T., (2012),The State of Enterprise Network Traffic in 2012,In: 18th Asia-Pacific Conference on Communications (APCC) (2012).
    • Lee, K., Murray, D., Goodfield, D., Anda, M., (2012),Experiences and issues for environmental engineering sensor network deployments,In: 6th IEEE International Conference on Digital Ecosystems and Technologies (DEST) (2012).
    • Wang, W., Lee, K., Murray, D., (2012),Integrating Sensors with the Cloud UsingDynamic Proxies,In: 23rd Annual IEEE International Symposium on Personal, Indoor and Mobile Radio Communications.
    • Murray, D., Koziniec, T., Dixon, M., (2010),D-Proxy: Reliability in wireless networks,In: 16th Asia-Pacific Conference on Communications (APCC) (2010).
    • Murray, D., Dixon, M., Koziniec, T., (2010),An experimental comparison of routing protocols in multi hop ad hoc networks,In: Australasian Telecommunication Networks and Applications Conference (ATNAC) (2010).
    • Daabaj, K., Dixon, M., Koziniec, T., Murray, D., (2010),Reliable data delivery in low energy ad hoc sensor networks,In: 16th Asia-Pacific Conference on Communications (APCC) (2010).
    • Lee, K., Murray, D., Hughes, D., Joosen, W., (2010),Extending sensor networks into the Cloud using Amazon Web Services,In: 1st IEEE Networked Embedded Systems for Enterprise Applications (NESEA) International Conference (2010).
    • Murray, D., Dixon, M., Koziniec, T., (2009),RDCS: Routing Driven Channel Selection in Multi-Radio Ad-hoc Networks,In: 5th International Wireless Communications and Mobile Computing Conference (IWCMC) (2009).
    • Murray, D., Koziniec, T., Dixon, M., (2009),Solving Ack Inefficiencies in 802.11 Networks,In: International Conference on Internet Multimedia Systems Architecture and Applications.
    • Murray, D., Dixon, M., Koziniec, T., (2007),An Analysis of Handoff in Multi-band 802.11 Networks,In: 4th IEEE International Conference on Mobile Ad-hoc and Sensor Systems (MASS) (2007).
    • Murray, D., Dixon, M., Koziniec, T., (2007),Scanning Delays in 802.11 Networks,In: International Conference and Exhibition on Next Generation Mobile Applications, Services and Technologies (NGMAST) (2007).
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