New high-performance iterative error correction codes. This project develops new error correction codes to underpin the success of next-generation communications technologies. The nature of the project presents significant potential for project outcomes to be beneficial to the Australian telecommunications industry in a wide range of application areas from optical communication to digital broadcasting.
Easing the Squeeze: Dynamic and Distributed Resource Allocation with Cognitive Radio. The radio spectrum is a scarce and valuable natural resource which is being squeezed by the rapid growth in wireless communications. Cognitive radios make efficient use of radio spectrum by dynamically reusing frequencies. This requires cognitive radios to sense the local environment and to control the interference caused to existing users of the spectrum. This project will design novel dynamic and distributed ....Easing the Squeeze: Dynamic and Distributed Resource Allocation with Cognitive Radio. The radio spectrum is a scarce and valuable natural resource which is being squeezed by the rapid growth in wireless communications. Cognitive radios make efficient use of radio spectrum by dynamically reusing frequencies. This requires cognitive radios to sense the local environment and to control the interference caused to existing users of the spectrum. This project will design novel dynamic and distributed resource allocation algorithms for cognitive radios in order to significantly improve their performance using techniques from extreme value theory, game theory and mechanism design and large random matrix theory. Read moreRead less
Software Defined Networking: Transforming Emergency Operations. The project aims to improve the effectiveness and efficiency of Australia's emergency operations, for example, bushfire and rescue missions, by providing robust and integrated communications systems for police and the emergency services. Emergency communications systems are currently fragmented by the different technologies, creating disconnected islands of information. The project aims to provide techniques that allow multiple wire ....Software Defined Networking: Transforming Emergency Operations. The project aims to improve the effectiveness and efficiency of Australia's emergency operations, for example, bushfire and rescue missions, by providing robust and integrated communications systems for police and the emergency services. Emergency communications systems are currently fragmented by the different technologies, creating disconnected islands of information. The project aims to provide techniques that allow multiple wireless technologies to communicate seamlessly using modern software-defined networking solutions.Read moreRead less
Autoconfiguration of critical network infrastructure. In 2000, Vitek Boden hacked into Maroochy Shire's sewerage system, causing hundreds of kilolitres of raw sewage to flow into a public area, causing financial and environmental damage, and the potential for the spread of life-threatening disease. The goal of this project is to improve the security of Australia's critical infrastructure, for instance, electricity and water supply. The project’s approach is to simplify the critical bottlenecks i ....Autoconfiguration of critical network infrastructure. In 2000, Vitek Boden hacked into Maroochy Shire's sewerage system, causing hundreds of kilolitres of raw sewage to flow into a public area, causing financial and environmental damage, and the potential for the spread of life-threatening disease. The goal of this project is to improve the security of Australia's critical infrastructure, for instance, electricity and water supply. The project’s approach is to simplify the critical bottlenecks in communication between plant equipment and company management, namely, the firewall that protects the critical plant equipment from viruses and hackers. Simplification will improve transparency and hence reduce the possibility that security holes allow an incident similar to that of this incident, or worse.Read moreRead less
Network Management in a World of Secrets. The aim of this proposal is to provide world leading measurement and management techniques for the Internet and other telecommunications networks. In particular, the methods will improve privacy of network participants (customers and providers) while simultaneously improving network performance. Additionally, the project will create expertise in an area of great future interest -- privacy preserving computation -- expertise that can be transferred to stu ....Network Management in a World of Secrets. The aim of this proposal is to provide world leading measurement and management techniques for the Internet and other telecommunications networks. In particular, the methods will improve privacy of network participants (customers and providers) while simultaneously improving network performance. Additionally, the project will create expertise in an area of great future interest -- privacy preserving computation -- expertise that can be transferred to students and the next generation of innovators.
Apart from these benefits, the research will provide exposure of Australian research strength in an area of world-wide public interest. Results concerning Internet reliability are of particularly high impact. Read moreRead less
Internet traffic-matrix synthesis. This project will enhance research and development in Internet engineering by providing basic inputs to test and validate new ideas. The result will be a more efficient, reliable, and robust Internet.
Adaptive Modulation For OFDM Signals. The sub band Signal To Noise Ratio in an OFDM communications channel varies by as much as 30 dB. In order to optimise the bandwidth efficiency of OFDM signalling it is desirable to adapt the chosen modulation technique such as M-ary QAM to the SNR available in sub bands. In this way high quality channels transmit the highest bit rates, whilst low quality channels accommodate the lowest bit rates. The net result is that the capacity of the communications link ....Adaptive Modulation For OFDM Signals. The sub band Signal To Noise Ratio in an OFDM communications channel varies by as much as 30 dB. In order to optimise the bandwidth efficiency of OFDM signalling it is desirable to adapt the chosen modulation technique such as M-ary QAM to the SNR available in sub bands. In this way high quality channels transmit the highest bit rates, whilst low quality channels accommodate the lowest bit rates. The net result is that the capacity of the communications link does not have to be limited by designing for worst case conditions.Read moreRead less
Optimal Waveform Design and Compensation Techniques for Non Linear Communication Channels. Distortion effects in satellite amplifiers have a serious impact upon communication system performance, for example, by increasing the error rates.
The research study we are proposing involves analysing these distortion causing non linear effects and designing techniques to compensate for them. Although we are initially interested in the nonlinear satellite channel, we intend the results to be extended t ....Optimal Waveform Design and Compensation Techniques for Non Linear Communication Channels. Distortion effects in satellite amplifiers have a serious impact upon communication system performance, for example, by increasing the error rates.
The research study we are proposing involves analysing these distortion causing non linear effects and designing techniques to compensate for them. Although we are initially interested in the nonlinear satellite channel, we intend the results to be extended to other difficult nonlinear channels such as will be present in future 3G and 4G mobile communication systems.
The proposed research will place Australia at the forefront of cutting edge Information Technology and Communications research.
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Physical layer security techniques for multiuser wireless networks. This project will develop innovative new security techniques for wireless networks. The novel techniques we develop will exploit the natural variability of wireless communication channels in order to deliver much-enhanced data security to a whole range of applications over the mobile internet.
High Bandwidth Efficient Schemes for Portable Multimedia Communications. The introduction of multimedia services for mobile users has resulted in a shortage of satellite spectrum. Spot beam technology is used to provide service in areas of high user density. Adjacent overlapping beams are allocated different frequency bands, however interference from neighbouring beams limits capacity. Multi-User Detection is a technology capable of significantly increasing capacity by frequency re-use in adj ....High Bandwidth Efficient Schemes for Portable Multimedia Communications. The introduction of multimedia services for mobile users has resulted in a shortage of satellite spectrum. Spot beam technology is used to provide service in areas of high user density. Adjacent overlapping beams are allocated different frequency bands, however interference from neighbouring beams limits capacity. Multi-User Detection is a technology capable of significantly increasing capacity by frequency re-use in adjacent spot beams. The aim of this project is to investigate receiver design for multi-user spot-beam channels and develop associated synchronisation and channel estimation methods. The outcome will be efficient communications systems supporting higher user populations, without increasing the bandwidth required.Read moreRead less